MM 550 TRAVEL - Wireless headphones SENNHEISER - Free user manual and instructions

USER MANUAL MM 550 TRAVEL SENNHEISER

Contents Contents Important safety instructions .… MM 550 Delivery includes Product overview Putting the MM 550 into operation Charging the battery pack … Adjusting the headband Switching the MM 550 on/off Connecting the MM 550 to the audio source Connecting the MM 550 using the audio cable Using the MM 550 … Adjusting the MM 550 to the listening situation Changing the volume ….. Remote-controlling connected devices from the MM 550 Resetting the settings of the MM 550 … Transporting the MM 550 Cleaning and maintaining the MM 550 . If a problem occurs … Accessories co œ um p Specifications

Manufacturer Declarations

Important safety instructions Important safety instructions + Please read these instructions carefully and completely before using the product. + Make these instructions easily accessible to all users at all times. Always include these instructions when passing the product on to third parties. + Only use the product in aircraft where wireless Bluetooth® transmission is permitted. + _ Do not use the product in situations which require special attention (e.g. in traffic or when performing skilled jobs). + Always keep the product dry and do not expose it to extreme temper- atures (normal operating temperatures: 0°C/32°F to 35°C/95°F). + Use the product with care and store it in a clean, dust-free environ- ment. + Switchoffthe product after use to conserve battery power. Remove the batteries if the product will not be used for extended periods of time. + The headset contains magnets that generate a magnetic field which could cause interference with cardiac pacemakers and implanted defi- brillators. Keep the headset at least 1.2” (3 cm) from cardiac pace- makers or implanted defibrillators. + __ Please protect your hearing from high volume levels. Sennheiser head- sets also sound exceptionally good at low volumes. + Only use the mains units and charging cables supplied by Sennheiser. + To reduce the risk of fire or electric shock, do not use the product near water and do not expose it to rain or moisture. + Unplug the mains unit from the wall socket — to completely disconnect the product from the mains — during lightning storms or — when unused for long periods of time. + Only operate the mains unit from the type of power source specified in the chapter “Specifications” (see page 26). + Ensure that the mains unit is — in a safe operating condition and easily accessible, — properly plugged into the wall socket, — only operated within the permissible temperature range, — not covered or exposed to direct sunlight for longer periods of time in order to prevent heat accumulation (see “Specifications’ on page 26). +__ Do not operate the product near any heat sources. + Only use attachments/accessories specified by Sennheiser (see ’Acces- sories” on page 25).

Important safety instructions Intended use Intended use includes: + having read this instruction manual, especially the chapter “Important safety instructions” on page 2, + using the product within the operating conditions and limitations described in this instruction manual. “Improper use” means using the product other than as described in this instruction manual, or under operating conditions which differ from those described herein. Safety instructions for the Lithium-Polymer battery pack If abused or misused, the battery pack may leak. In extreme cases, it may even present + aheat hazard, VAN + afire hazard, + an explosion hazard, + a smoke or gas hazard. Please understand that Sennheiser does not accept liability for damage arising from abuse or misuse. Keep away from children. + When not using the LE product for extended periods of time, remove the battery pack from the product. Immediately remove the Only use battery packs ÂA battery pack from an obvi- VAN recommended by ously defective product. Sennheiser. X Dispose of the battery FT] Switch battery pack- pack at special collection k powered products off points or return it to your after use. specialist dealer. Only charge the battery When not using the pack with the appropriate battery pack for extended Sennheiser chargers. periods of time, charge it regularly (about every 3 months). Do not heat above 70°C/ ] Only charge the battery == pack at ambient tempera- 158°F, e.g. do not expose tures between 10°C/50°F to sunlight or throw into a and 40°C/104°F. fire. Do not mutilate or Do not continue to use a dismantle. defective battery pack. Do not short-circuit. © Do not expose to moisture.

MM 550 MM 550 The MM 550 is an accessory which allows for wireless music enjoyment when used with mobile phones or other Bluetooth devices/Bluetooth compliant devices. Its circumaural, closed design and the latest active noise compensation technology (NoiseGard) make the MM 550 especially suitable for use with in-flight entertainment systems. Due toits active and passive attenuation of ambient noise, it lets you enjoy music even in noisy environments. Bluetooth The MM550 complies with the new Bluetooth 2.1 standard. Via its Bluetooth interface, it can be connected to a wide variety of Bluetooth enabled devices. Bluetooth wireless technology allows the MM 550 to communicate with your Bluetooth enabled device (e.g. mobile phone, MP3 player, PC or PDA) within a range of up to 10 meters.

SRS WOW HD improves the dynamic audio performance of compressed and uncompressed audio by expanding the size of the audio image and creating a deep, rich bass response. The patented techniques in SRS WOW HD widen the horizontal sound field and raise the vertical sound image, retrieving information lost in the mixing process to create a more natural audio experience. NoiseGard"" The NoiseGard active noise compensation system is based on the principle of cancelling out sound using “anti-sound” (phase-inverted sound). Tiny microphones pick up low-frequency ambient noise (up to 1 kHz) near the ear. The NoiseGard electronics use this noise to generate a sound wave which is the exact opposite (IE: at the same level but polarity reversed - 180° out-of-phase), the effect being that the polarity reversed signal cancels most of the outside noise. TalkThrough The MM 550 has a TalkThrough function, which allows you to communicate with other people without having to remove the headset. When Talk- Through is activated, professional quality microphones mounted on the outside of the headset pick up all acoustic signals in the immediate vicinity. Annoying background noise is electronically filtered out, only allowing the voice of the other person to pass through the headset clearly. Additional features + Great for travel: comfortable, rugged and foldable headset construction + Optional connection via audio cable for music enjoyment without Bluetooth technology + Outstanding sound quality due to Duofol diaphragms + Optimum protection against ambient noise due to active and passive noise attenuation

Delivery includes Delivery includes bbhhbh MM 550 headset BA 370 PX battery pack USB charging cable mains unit with country adapters stereo audio cable (2.5 mm to 3.5 mm jack plug) audio adapter (3.5 mm jack socket to 4" (6.35 mm) jack plug) in-flight adapter (3.5 mm jack socket to 3.5 mm double mono jack plug) transport case quick start guide incl. CD ROM with detailed instruction manual as PDF safety guide

Delivery includes Overview of the pictograms Meaning of the pictograms for pressing a button Briefly press this button. Keep this button pressed for 4 seconds. Keep this button pressed until the desired setting is made or the desired action is completed. Meaning of the pictograms for the flashing of the LED Lot This pictogram symbolizes a flashing. This pictogram symbolizes an interruption. Lis 2 This pictogram symbolizes a continuous flashing. This pictogram symbolizes an interval. Examples of some of the pictograms that are used throughout this instruc- tion manual: — J{ — TheLEDflashes once every 3 seconds. L'5s 2 ï-x-x TheLEDflashes 3 times per second. Lis > — XY{jx{— TheLED flashes in a rhythmic sequence.

X{-x{-x7 TheLED flashes blue 3 times and then goes off. The pictogram “i” This note provides important information! Notes marked with the pictogram “i” provide important informa- tion on the use of the headset.

Product overview Product overview © Headband © Bluetooth button © Microphone @ Ear pad © \oiseGard button © Socket for charging cable © SRS button © Battery pack compartment © Socket for audio cable © Microphone Operating panel @ YA LED @) Rewind «button @ Fast-forward » button G@) Master button @ Volume + button @) Volume 2 button

Putting the MM 550 into operation Putting the MM 550 into operation » Before using the MM 550 for the first time, remove the protection strip from the battery pack. Charging the battery pack » Before using the battery pack for the first time, charge it for at least 3 hours. The battery pack can also be charged inside the headset during operation. When charging the battery pack, the LED @ on the battery pack lights up red. When the battery pack is fully charged, the LED @ on the battery pack lights up green. When the battery pack is almost flat, the X{ LED (D) flashes red. You hear a short, descending acknowledgement tone. The operating time of the battery pack depends on the device settings, the listening situation and the audio sources used. The operating time will be reduced if you use SRS WOW HD. NoiseGard and Bluetooth technology 8 hours NoiseGard without Bluetooth technology 20 hours Bluetooth technology without NoiseGard 10 hours Remove the battery pack if the headset will not be used for extended periods of time.

Putting the MM 550 into operation Possibilities of charging the battery pack First, connect the charging cable @ to the battery pack as described in section a and then connect the charging cable @ to a power source as described in section b. Connecting the charging cable to the battery pack You can charge the battery pack either inside or outside the headset. This is helpful if you are using a spare battery pack (to be ordered separately). To charge the battery pack inside the headset: » Open the cover of the battery pack compartment @ on the left ear cup. » Connect the charging cable @ to the socket for charging cable @ on the headset. To charge the battery pack outside the headset: » Open the cover of the battery pack compartment @ on the left ear cup. > Press the button next to the battery pack compartment and remove the battery pack. » Connect the charging cable @ to the socket for charging cable @ on the battery pack.

Putting the MM 550 into operation

Connecting the charging cable to the mains unit, to a PC or to other USB devices In order to charge the battery pack, you can connect the charging cable to either the USB socket of your PC or the supplied mains unit or to other USB devices. To connect the charging cable to à PC: » Connect the USB plug of the charging cable @ to the USB socket of your PC. The battery pack is being charged. The LED @ on the battery pack lights up red. To connect the charging cable to the mains unit: » Connect the charging cable @ to the mains unit. » Plug the suitable country adapter onto the mains unit. » Plug the mains unit into a wall socket. The battery pack is being charged. The LED @ on the battery pack lights up red. » After charging, unplug the mains unit from the wall socket. If you have charged the battery pack outside the headset: » Insert the charged battery pack into the headphone's battery pack compartment until it locks into place. » Close the cover of the battery pack compartment @. Adjusting the headband For optimum transmission quality, good noise attenuation and best possible comfort, the headband has to be adjusted to properly fit your head: > Wear the headset so that the headband @ runs over the top of your head. » Adjust the length of the headband so that — the ear pads @ rest comfortably against the ears, — you feel even, gentle pressure around your ears, — a snug fit of the headband @ on the head is ensured. » To ensure maximum noise attenuation, final adjustment is best made in a noisy environment.

Putting the MM 550 into operation Switching the MM 550 on/off CAUTION Hearing damage due to high volumes! Listening at high volume levels for long periods can lead to VAN permanent hearing defects. »> Before putting the headset on, set the volume to a low level. > Do not continuously expose yourself to high volumes. Switching the MM 550 on -u-n > Press the Master button (5) and keep it pressed until the X{ LED (1) flashes blue. You hear an ascending beep. — When switching the headset on for the first time, it will automatically go into pairing mode. The headset is waiting to be paired with a Bluetooth enabled device (see page 12). — When the headset is already paired with an audio source, the Bluetooth connection is automatically established. You hear an ascending beep and then you hear your audio source. — When the headset is already paired with an audio source but the audio source is switched off or out of range, the YY LED (1) flashes blue. The headset will try for 3 minutes to connect to one of the up to 8 previously paired audio sources. If this fails, the headset automati- cally switches off after 60 minutes. Switching the MM 550 off Oo! X-x1-x{ P Press the Master button © and keep it pressed until the YY LED () AE flashes 3 times red. 6 XP) You hear a descending beep. The Bluetooth connection is automatically (O8 deactivated. The headset switches off.

Putting the MM 550 into operation

Connecting the MM 550 to the audio source CAUTION Danger of malfunction! The transmitted radio waves can impair the operation of sensitive and unprotected devices. > Only use the headset in aircraft where wireless Bluetooth transmission is permitted or use the audio cable instead (see “Connecting the MM 550 using the audio cable” on page 15). The headset complies with the Bluetooth 2.1 standard. In order that data can be transmitted wirelessly using Bluetooth technology, you have to register your headset with your audio source (pairing). The headset can save the connection profiles of up to 8 Bluetooth devices with which it has been paired. After switch-on, the headset automatically connects to one of these devices. If you pair the headset with a ninth audio source, the saved connection profile of the first Bluetooth device will be overwritten. If you want to re- establish a connection with the first audio source, you have to pair the headset with this audio source again. If your audio source does not have a Bluetooth interface, use an optional dongle (see Accessories” on page 25). For an optimum listening experience, your audio source has to support the A2DP profile.

Putting the MM 550 into operation Pairing the MM 550 with an audio source > Make sure that your headset is switched off (see “Switching the MM 550 off” on page 11). When switching the headset on for the first time, it will automatically go into pairing mode. The headset is waiting to be paired with a Bluetooth enabled device (see page 12). > Press the Master button (5) and keep it pressed until the J{ LED () alternately flashes blue and red. > On your audio source, activate the Bluetooth function “Add a new device". » Proceed as described in the instruction manual of the audio source. If a suitable audio source is found, the devices will exchange device identi- fication information. The Y{ LED () flashes 3 times blue and you hear an ascending beep. The devices have identified each other and the headset is paired with the audio source. PIN code When the audio source prompts for a password or PIN code, enter the default PIN code 0000". If no device is found within approx. 5 minutes, the J{ LED (1) flashes 3 times red and you hear a descending beep. The headset will then try for 3 minutes to connect to one of the up to 8 previously paired audio sources. If this fails, the headset automatically switches off after 60 minutes. In this case, repeat the necessary steps to pair the headset with the audio source again. Switching the “Bluetooth connection” flashing on/off > Switch the headset off (see “Switching the MM 550 off” on page 11). To switch the flashing on during a Bluetooth connection: > Press the Master button (5) and keep it pressed until the JY LED (1) alternately flashes blue and red. > Briefly press the Volume « button (@). To switch the flashing off during a Bluetooth connection: > Briefly press the Volume + button (G).

Putting the MM 550 into operation Disconnecting the Bluetooth connection The Bluetooth button @ is backlit, indicating the current setting. "M The backlighting goes off after a short time to conserve energy. » Press any button on the headset to display the current setting of the Bluetooth function. To disconnect the Bluetooth connection to the audio source, you can switch off the headset or the Bluetooth function. This setting is retained until the Bluetooth function is switched on again. To switch the headset off: X{-}] P Press the Master button (5) and keep it pressed until the X{ LED (1) OV x- : Xe flashes 3 times red. G À You hear a descending beep. The Bluetooth connection is automatically . deactivated. The headset switches off. To switch the Bluetooth function off: f ©) » Press the Bluetooth button @ and keep it pressed until the { LED (1) AC) | 4 flashes 3 times red. You hear a descending beep. = E=SR The Bluetooth button @ goes off. The Bluetooth function is switched off.

Putting the MM 550 into operation Connecting the MM 550 using the audio cable Connecting the audio cable You can connect the headset to the audio source using the audio cable if: + you do not want to use the Bluetooth function, °__ you are not allowed to use the Bluetooth function (some airlines do not allow Bluetooth transmission)

+ the battery packis flat. When the audio cable is connected to the headset, the Bluetooth function cannot be switched on. If the headset is already connected to the audio source via the Bluetooth interface, the Bluetooth connection is automatically disconnected when you connect the audio cable. The X{ LED () flashes 3 times red and you hear a descending beep. Connect the 2.5 mm jack plug of the audio cable to the socket @ of the headset. » Connect the 3.5 mm jack plug of the audio cable ® to — the headphone socket of your audio source or — the audio adapter for 4" (6.35 mm) jack socket @ if the 3.5 mm jack plug of the audio cable is too small — the in-flight adapter @ if you want to use the headset with an in-flight entertainment system. When the audio cable is connected to your audio source, you hear the sound from your audio source and the Y{ LED (D) flashes blue. Detaching the audio cable If you only want to use the MM 550 as a Bluetooth headset, you can detach the audio cable ®. » Pull the 2.5 mm jack plug of the audio cable ® from the socket @ of the headset. When detaching the audio cable, the Bluetooth function is not automatically switched on. » Switch the Bluetooth function on again (see “Switching the Bluetooth function on/off” on page 17).

Using the MM 550 Adjusting the MM 550 to the listening situation The headset has a SRS WOW HD function, a NoiseGard function, a Bluetooth function and a TalkThrough function. Depending on the listening situation, you can switch these functions on or off. Switching the SRS WOW HD function on/off SRS WOW HD ensures enhanced sound quality and bass boost perfor- mance, thus allowing for a spectacular sound experience. To switch the SRS WOW HD sound enhancement on: » Briefly press the SRS button @. The button is backlit in yellow and the SRS WOW HD function is switched on. To switch the SRS WOW HD sound enhancement off: » Briefly press the SRS button @. The yellow backlighting goes off and the SRS WOW HD function is switched off. Switching the NoiseGard function on/off The NoiseGard button @ is backlit, indicating the current setting. The backlighting goes off after a short while in order to conserve energy. 7 Press any button on the headset to display the current setting of the NoiseGard active noise compensation. The NoiseGard function has to be switched on to be active. If the NoiseGard function is switched off, the MM 550 can also be used as a conventional headset. To switch the NoiseGard function on: » Press the NoiseGard button @ for 2 seconds. The button is backlit in red and the NoiseGard function is switched on. To switch the NoiseGard function off: » Press the NoiseGard button @ for 2 seconds. The red backlighting goes off and the NoiseGard function is switched off. Conserving energy L Switch the NoiseGard function off after use to conserve energy.

Using the MM 550 Switching the TalkThrough function on/off The MM 550 provides excellent attenuation of ambient noise. The Talk- Through function allows you to communicate undisturbed with other people without having to remove the headset even when NoiseGard is switched on. To switch the TalkThrough function on: > Briefly press the NoiseGard button @. The XY LED (D lights up red. The TalkThrough function is switched on. To switch the TalkThrough function off: > Briefly press the NoiseGard button @. The XY LED (D) goes off. The TalkThrough function is switched off. When the TalkThrough function is switched on, you cannot listen to music. Switching the Bluetooth function on/off Via the Bluetooth interface, the headset can be connected to a wide variety of Bluetooth enabled devices. To switch the Bluetooth function on: > Press the Bluetooth button @ and keep it pressed until the JY LED (1) flashes 3 times blue. The Bluetooth function is switched on. To switch the Bluetooth function off: > Press the Bluetooth button @ and keep it pressed until the JY LED (1) flashes 3 times red. You hear a descending beep. The Bluetooth button @ goes off. The YY LED () flashes blue and the Bluetooth function is switched off. Changing the volume The MM 550 allows you to change the volume of the audio signal during a call or while listening to music: Incremen- Incremen- GED L 4 tally | 4 tally reduces À increases nes the volume the volume Continuously ©) Continuously increases the Ÿ& reduces the volume ES volume If you press the respective button briefly, the volume is changed incremen- tally; if you hold down the button, the volume is changed continuously. When the minimum or maximum volume is reached, you hear an acknowl- edgement tone.

Remote-controlling connected devices from the MM 550 You can directly remote-control any device supporting the AVRCP profile and connected to the MM 550 by using the buttons on the headset. Please refer to the instruction manual of your audio source for information on whether your device supports the AVRCP profile. Remote-controlling the audio source from the MM 550 If your headset has a Bluetooth connection to an audio source (e.g. mobile phone, iPod, MP3 or CD player), you can use the MM 550 to remote-control the audio source as follows: Incrementally Incrementally increases the reduces the volume volume Continuously Continuously increases the reduces the volume volume Skips to the previous track Skips to the next track €) leu lei le Je 6e le le Fast-forwards Rewinds the the track * track * Plays the track Stops the track (acknowledge- ment tone)

• These functions are not supported by all connected Bluetooth devices.

Using the MM 550 Remote-controlling a mobile phone from the MM 550 If your MM 550 has a Bluetooth connection to your mobile phone, the Y{ LED (D on the headset flashes to indicate that the mobile phone is ringing. The LED flashes 3 times blue. After a pause, the flashing is repeated. You can also hear the ring tone of your mobile phone if your mobile phone supports this function. EF Switching the Bluetooth function off If you press the Bluetooth button @ too long, the Bluetooth func- tion switches off! You can use the MM 550 to remote-control different functions of your mobile phone. If the mobile phones rings: or ÿ Accepts the call or © Rejects the call $ (acknowledgement tone) or Ends the call If the mobile phone is switched on, does not ring and you do not make a phone call: Redials the last number g (acknowledgement tone)

L Activates voice dial During a call: Transfers the ongoing call back to the mobile phone ©) Activates the muting function $ (acknowledgement tone) Any Deactivates the muting function button | 4

Resetting the settings of the MM 550 You can reset all settings of your headset to the factory default settings. This allows you to prevent that other users of the headset can access your Bluetooth enabled devices. You can then pair five new devices with the headset. » Press the Master button 6) and keep it pressed until the J{ LED () flashes 3 times red. The headset switches off (see “Switching the MM 550 off” on page 11). » Press the Master button 6) and keep it pressed until the X{ LED () alternately flashes blue and red. » Press the Bluetooth button @ and keep it pressed until the settings of the headset are reset.

Transporting the MM 550 Transporting the MM 550 For space-saving transportation, the headset can be folded up flatly and compactly. Rotate the ear cups by 90°. » Fold the ear cups inwards. » Place the headset flat into the transport case. Your accessories can be transported in the front bag of the transport case: +. Audio adapter (4 (6.35 mm) jack plug) +__In-flight adapter (3.5 mm double mono jack)

Cleaning and maintaining the MM 550

Cleaning and maintaining the MM 550 Cleaning the MM 550 CAUTION Liquids can damage the electronics of the product! Liquids entering the housing of the product can cause a short- circuit and damage the electronics. > Keep all liquids far away from the product. > Do not use any solvents or cleansing agents. For reasons of hygiene, you should clean the headset regularly: » Before cleaning, make sure that the product is not recharged via the mains. » Only use a dry and soft cloth to clean the product. Replacing the ear pads You can replace the ear pads. Spare ear pads are available from your Sennheiser partner or can be ordered at www.sennheiser.com under “Service & Support”. » Grasp the edge of the ear pad @ behind the ear cup and peel it up and away from the ear cup. » Slide the new ear pad @ onto the ear cup.

If a problem occurs … If a problem occurs … Problem Possible cause No operation The battery pack Recharge the battery pack. 8 indicator — is flat. headset cannot be switched on No audio The jack plug of Check the connection to 15 signal when the audio cable is your audio source. theaudio cable not properly is connected connected. No audio The headset is Switch the headset on. 11 signal during switched off. Bluetooth The headset is not Check if the headset is 12 COMEEN paired with an paired. If necessary, pair audio source. the headset with the audio source again. The Bluetooth Switch the Bluetooth func- 17 function on the tion on the headset on. headset is switched off. The audio cable is The connection of the 15 connected tothe audio cable automatically headset. switches off the Bluetooth connection. Remove the audio cable and then switch the Bluetooth function on again. The volume is Increase the volume. 17 adjusted too low. Headset The pairing does Check if the audio source = cannot be not work. supports the A2DP profile. paired If not, use one of the optional dongles. The audio source Switch the audio source on. 12 is switched off. No audio The headset is Switch the headset on. 11 signal during switched off. NoiseGard The TalkThrough Switch the TalkThrough 17 operation function is function off. switched on. When in Talk- Through mode, the audio signal is not available.

Headset donot The operation of Remove the battery pack react to any the headset is from the headset. Reinsert button press faulty. the battery pack into the headset. Switch the headset on again. Bluetooth The Bluetooth Switch the Bluetooth 17 connection button has been function on. is suddenly pressed too long. interrupted If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed solutions, please contact your Sennheiser partner for assistance. To find a Sennheiser partner in your country, search at www.sennheiser.com.

@ Bluetooth Specifications Transducer principle Ear coupling Frequency response Nominal impedance active/passive Sound pressure level at 1 kHz and 1 Volt THD at 1 kHz Audio connection Audio adapter In-flight adapter Cable length Audio cable Charging cable Weight BA 370 PX battery pack Charging time Operating time Operating temperature range Storage temperature range Passive noise attenuation NoiseGard active noise compensation PSC 03R-050 mains unit Nominal input voltage Nominal input current Mains frequency Nominal output voltage Nominal output current Operating temperature range Storage temperature range Relative humidity Weight Bluetooth Bluetooth® Range Transmission frequency Transmission power Profiles Codec Bluetooth QD ID PX dynamic, closed circumaural 15-22,000 Hz 590/100 Q 107 dB SPL <0.1%

Remarkable enhancement for mono and stereo playback Immersive 3D audio Center Control Optimal headphone listening Elevated sound image Definition Control Bigger bass Audio level management

SRS WOW HD" improves the dynamic audio performance of compressed and uncompressed audio by expanding the size of the audio image and creating a deep, rich bass response. The patented techniques in SRS WOW HD widen the horizontal sound field and raise the vertical sound image, retrieving information lost in the mixing process to create a more natural audio experience. SRS WOW HD also shapes a maximized bass response using sculpted filters and driver physics to go beyond the low- frequency limitations of speakers and headphones. SRS WOW HD also adds Definition" Control, for realistic clarity, and the new Center Control, for dynamic extraction and positioning of dialog. SRS WOW HD adjusts the space of the stereo image and eliminates the narrow stereo sweet spot and creates an immersive stereo image from mono and stereo source material. It also restores audio realism which is often masked by traditional recording and playback techniques. SRS WOW HD adjusts the mix of the center information into the stereo image. It works in tandem with the space control to create the perfect balance, acting as a “zoom” lens for sound. It can bring content to the fore- front to dominate the mix or fade it backward, virtually eliminating the content all together. SRS WOW HD includes techniques based on patented HRTFSs to deliver a natural, non-fatiguing headphone listening experience by placing the perception of the stereo sound image outside of one's head making it more realistic and immersive. SRS WOW HD adjusts the horizontal plane of the audio image from non- optimally placed speakers placing it at an appropriate listening level. SRS WOW HD delivers a livelier, more brilliant sound. The purified sound can be heard in musical vocals, high-frequency instruments, and exposes details of ambient sound present in the audio source. SRS WOW HD includes psychoacoustic bass enhancement techniques which enhance the perception of low bass frequencies from speakers and headphones which, under normal conditions, can not produce these frequencies due to the inherent low frequency cut off and driver size limi- tations. SRS WOW HD includes an audio level management system which monitors the output levels of the entire product audio system and manages the level dynamically to prevent sudden audio clipping. Features of SRS WOW HD + Stereo enhancement which improves dynamic audio performance + Sculpted bass response for maximum thump on small speakers +. More natural audio with a wider sound field and raised sound image + High-definition control for realistic clarity + Center Control for dynamic extraction and positioning of dialog

Manufacturer Declarations

Manufacturer Declarations Warranty Sennheiser Communications A/S gives a warranty of 24 months on this product. For the current warranty conditions, please visit our website at www.sennheiser.com or contact your Sennheiser partner. Declaration of Conformity This product complies with the basic requirements and other relevant provisions of the following directives: +. R&TTE Directive (1999/5/EC) + EMC Directive (2004/108/EC) +__ Low Voltage Directive (2006/95/EC) + RoHS Directive (2002/95/EC) + WEEE Directive (2002/96/EC) + _ Battery Directive (2006/66/EC) The declarations are available on the internet at www.sennheiser.com. Before putting the product into operation, please observe the respective country-specific regulations!

Manufacturer Declarations Statements regarding FCC and Industry Canada FCC Declaration of Conformity (DoC. SENNHEISER Model No: MM 550 Sennheiser Electronic Corporation Strat. Marketing « Stefanie Reichert One Enterprise Drive + Old Lyme « CT 06371 : USA Tel: [phone], ext. 144 Fax: [phone] declare the abowe device comply with the requirements of Federal Communications Commission. This device complies with Part 15 of the FCC rules. Operation is subjected to the following two conditions:

1) This device may not cause harmful interference, and

2) This device must accept any interference received, including interference that may cause undesired operation.

Responsible Party: John Falcone This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a partic- ular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the inter- ference by one or more of the following measures: +. Reorient or relocate the receiving antenna. +__ Increase the separation between the equipment and receiver. + Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. + Consult the dealer or an experienced radio/TV technician for help. This class B digital apparatus complies with the Canadian ICES-003. Changes or modifications made to this equipment not expressly approved by Sennheiser electronic Corp. may void the FCC authorization to operate this equipment. RF Radiation Exposure Information Since the radiated output power of this Class1 BT device is far below the FCC radio frequency exposure limits, it is not subjected to routine RF expo- sure evaluation as per Section 2.1093 of the FCC rules.

Manufacturer Declarations

Gmda 1620880 ue CE088 Æ Singapore Complies with IDA Standards DB100582 Japan e R | 203 WW JNO00022 Korea sc -MM550 SR OR

Manufacturer Declarations Trademarks Sennheiser and NoiseGard" are registered trademarks of Sennheiser electronic GmbH & Co. KG. The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Sennheiser electronics GmbH & Co. KG is under license. iPhone® and iPod° are registered trademarks of Apple Inc, registered in the US. and other countries. SRS WOW HD" is a registered trademark of SRS Labs, Inc. Definition" Control is a registered trademark of SRS Labs, Inc.