M4U TW1 - Headphones PSB - Free user manual and instructions

Product Type	True Wireless Earbuds
Brand	PSB
Model	M4U TW1
Driver Size	6 mm
Frequency Response	20 Hz - 20 kHz
Impedance	16 ohms
Sensitivity	98 dB
Bluetooth Version	5.0
Supported Codecs	SBC, AAC, aptX
Battery Life (Earbuds)	8 hours
Battery Life (Case)	24 hours additional
Charging Time	2 hours for earbuds
Charging Port	USB-C
Weight (Each Earbud)	5.5 g
Weight (Charging Case)	40 g
Water Resistance	IPX5
Microphone	Yes, dual beamforming
Controls	Touch controls
Active Noise Cancellation	Yes, ANC
Color Options	Black, White
Compatibility	iOS, Android, Windows, Mac

Frequently Asked Questions - M4U TW1 PSB

How do I pair the PSB M4U TW1 with my phone?

Open the charging case and remove the earbuds. They will enter pairing mode automatically. On your phone, enable Bluetooth and select PSB M4U TW1 from the list.

How do I reset the earbuds?

Place both earbuds in the case and close the lid. Wait 10 seconds, then open the lid and press and hold the touch surface on both earbuds for 5 seconds until the LED flashes red and white. The earbuds are reset.

How long does the battery last?

The earbuds last up to 8 hours on a single charge. The charging case provides an additional 24 hours of battery life.

Are the PSB M4U TW1 waterproof?

The earbuds have an IPX5 rating, meaning they are resistant to sweat and light rain but should not be submerged.

How do I charge the earbuds and case?

Place the earbuds in the charging case. Connect the case to a USB-C charger. The LED on the case indicates charging status. Full charge takes about 2 hours.

Can I use only one earbud at a time?

Yes, the PSB M4U TW1 support mono mode. Simply use one earbud and the other will remain in the case.

How do I activate noise cancellation?

Tap the left or right earbud twice to toggle ANC on and off. You can also use the companion app for more settings.

What ear tip sizes are included?

The package includes three sizes of silicone ear tips: small, medium, and large. Choose the one that fits best for comfort and sound isolation.

How do I clean the earbuds?

Use a soft, dry cloth to wipe the earbuds and charging case. Do not use liquids. For the ear tips, remove them and wash with mild soap and water, then dry thoroughly before reattaching.

What is the warranty period?

The PSB M4U TW1 come with a 1-year limited warranty against defects. Keep your proof of purchase for service.

USER MANUAL M4U TW1 PSB

Included Accessories

USB Charging Cable

Earphone Tips

Protective Case

2

M4U TW1

Getting Started

Charge the earphones using the supplied USB Charging Cable connected to a power source.

graph TD
    A["Device 1"] --> B["Plug"]
    C["Device 2"] --> B
    B --> D["Power Supply"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333

Wireless Pairing

Press the power button on the M4U TW1-L for five seconds to power on and begin Pairing.

The LED indicator will quickly flash red and blue when ready.

5 S

Wireless Pairing

Open Bluetooth settings on your device and turn on Bluetooth.

Select PSB M4U TW1-L from your Bluetooth settings. The LED indicator on the earphones will flash blue when paired.

Wireless Pairing

Turn on the right earphone by holding down the power button for three seconds. The left and right earphones will now automatically pair to each other.

3 S

Using the Earphones

When the M4U TW1-L is turned on again, it will automatically Bluetooth pair back to the last known device. To turn the TW1's ON, press and hold the power button for three seconds. To turn the TW1's OFF, press and hold the power button on either earphone for five seconds.

You will see a solid RED light on the earphones when they are turning OFF.

Touch Controls

Simple line icon showing a hand pointing at a telephone handset inside a circle (no text or symbols)

X1

X1

X2 2 S

X2

2 S (TW1-L)

(TW1-R)

5 S

For additional support with your headphones please visit the PSB salon at psbspeakers.com.

Please download the full multi-language Owner's Manual from psbspeakers.com.

Battery Type: Polymer Lithium-ion, Rechargeable, 3.0V, 190mAh

Type de piles : Polymer Li-ion, rechargeable, 3.0V, 190mAh

A member of The Lenbrook Group of Companies | 633 Granite Court, Pickering, Ontario L1W 3K1

M4U TW1

Line drawing of a portable earbuds with a circular head and logo (no text or symbols)

Line drawing of a portable earbuds with a spool labeled 'psb BEAGERS' (no additional text or symbols)

INTRODUCTION

Thank you for purchasing a pair of PSB Speakers' M4U TW1 earphones. Producing natural musical dynamics and precisely imaged sound, these high fidelity earphones bring you closer to the music you love.

Engineered with over 45 years of audio excellence and research, the M4U Headphones deliver unmatched sound quality and all-day comfort for music enthusiasts and professionals. PSB's true-to-nature sound quality and stylish ergonomic design allow you to escape to a personal concert experience that travels anywhere with you.

REGULATORY INFORMATION

Operating Temperature Range: 5°C – 40°C

Operating Frequency Range: Bluetooth 2.4G

Input Rating:		5VDC,	500mA
Battery Rating:		3.7V,	90mAh
Battery Charging Time:	2 hours
Weight:		10 grams	/	each

Date of Manufacture: The first digit in the second part of the serial number indicates the year of manufacture; "7" is 2017.

Responsible Party: Lenbrook Industries Limited. 633 Granite Court, Pickering, Ontario, Canada L1W 3K1. Phone: [phone], Facsimile: [phone]

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use if such marks by NAD Electronics is under license.

To prevent possible hearing damage, do not listen at high volume levels for long periods.

OSHA Guidelines for Noise Exposure Limits

The Occupational Safety Health Administration (OSHA) has issued headphone usage recommendations for maximum daily exposure and sound pressure levels [measured in decibels (dB)]. A decibel is a unit of sound measurement that increases exponentially with volume. For example, conversational speech is typically around 60dB, and a rock concert in a stadium is often about 110dB.

90dB 8 hours

95dB 4 hours

100dB 2 hours

105dB 1 Hour

110dB 30 minutes

115dB 15 minutes

120dB Avoid as damage may occur

SAFETY INFORMATION

Please read this booklet to ensure that you are getting the most out of your PSB product and music.

This device complies with Part 15 of the FCC Rules. 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.

WARNING

• Warnings or announcements may be unnoticed when you are using the headphones. Please be aware of ambient sounds while wearing the headphones and recognize them as needed.
• To prevent possible hearing damage, do not listen at high volume levels for long periods.
  • These headphones should only be connected to a USB interface of version USB2.0 or higher.
• Risk of explosion if the battery is replaced by an incorrect type, dispose of used batteries according to the instructions.
• Be sure to read the Owner's Manual of the device that you want to connect to these headphones.
• Check the volume settings when using the headphones when in public places and ensure that you do not disturb people around you.
  • These headphones are not guaranteed to work with all combinations of Bluetooth devices/mobile phones.

• These headphones do not support a connection with all Bluetooth devices/mobile phones.

- Bluetooth wireless technology can communicate up to approximately 10 m. Obstructions (people, metallic objects, walls, etc.) and radio wave conditions affect the actual range.

- The Bluetooth device that you want to connect with must support the same profile as these headphones in order to use the Bluetooth function. For details on profiles that the Bluetooth device is compatible with, see the Bluetooth device Owner's Manual.

- Due to features of Bluetooth wireless technology, playback of audio on the headphones is slightly delayed compared to the playback on the transmitting device.

- Do not use your headphones while driving.

- Remove the headphones immediately if you experience a warming sensation or loss of audio.

- Do not use mobile phone adaptors to connect these headphones to airplane seat jacks, as this could cause overheating and result in injury or property damage.

- The headphones and accessories contain small parts which may be a choking hazard. Not suitable for children under age 3.

• This product contains magnetic material. Consult your physician on whether this might affect your implanted medical device.

- Use this product only with an agency approved power supply which meets local regulatory requirements (e.g., UL, CSA, VDE, CCC).

- Do not expose products containing batteries to excessive heat (e.g. from storage in direct sunlight, fire or the like).

- Long-term exposure to loud music may cause permanent hearing damage. To avoid personal injury when using the headphones for extended periods, the volume should be kept at the described levels.

- Fire or shock may occur should water or other foreign substances permeate inside the device.

- Do not attempt to modify this product as it could result in personal injury and/or product failure.

- Keep batteries out of reach of children.

LISTENING...

Earphone Placement

Each earphone is marked with "L" and "R" to indicate the left and right sides of the earphones. Be sure to put them on correctly to enjoy your audio as originally intended and maximize your personal music experience and fit.

Power & Pairing...

1. Press the Power Button on the M4U TW1-L for 5 seconds and release. The LED indicator will quickly blink red and blue when ready for pairing.
2. Open the Bluetooth settings on your device and turn on Bluetooth.
3. Select the PSB M4U TW1-L from your Bluetooth settings. LED indicator on the earphone will turn solid blue when paired.
4. Turn on the M4U TW1-R earphone by holding down the Power Button for 3 seconds. The left and right earphones will now automatically sync to one another.

NOTE: The next time the earphones are turned on, they will re-pair and automatically reconnect to the most recent device, if it is in range. Make sure to turn on the M4U TW1-L first (hold for 3 seconds). Then turn on the M4U TW1-R (hold for 3 seconds).

Re-establishing Wireless Link

1. Forget/disconnect all previously connected Bluetooth devices (i.e. Phone / Tablet) to the earphones.
2. Press and hold the power buttons of both earphones for 5 seconds to turn on and enter pairing mode. Once in pairing mode the LED will quickly flash red and blue. Release power button. DO NOT connect either earphone to a device.
3. On the left earphone, press and hold the power button to enter search mode (hold for 3 seconds). Once the LED starts slowly flashing red and blue, release power button and wait 5 seconds. The earphones will establish a connection to each other, and the TW1-L will go back to pairing mode.
4. Now turn off the left earphone by holding the power button (\~5 sec). You should notice that the LED on both earphones will flash red before shutting off.
5. Turn the left earphone back on (hold power for 5 sec). From here, go to your device's Bluetooth settings and select "PSB M4U TW1-L" from the list. Once it has connected you can turn on M4U TW1-R, (hold power for 3 seconds). This earphone will automatically pair to right earphone. Turn on your music and enjoy!

TOUCH CONTROLS...

Touch Button

To answer a phone call, tap the touch button. Tap again to end the call.

To reject a phone call, press and hold the touch button until an audio prompt is heard.

When connected to a device, double tap the touch button.

To pause playback, double tap the touch button.

To skip back a song, press and hold the left earphone touch button until the previous song starts.

To skip forward a song, press and hold the right earphone touch button until the next song starts.

To activate a voice assistant on your device, press and hold either touch button for 5 seconds.

Battery Life with the M4U TW1 Headphones

The M4U TW1 will alert you with an audible warning when 15 minutes of battery life remain. This warning will repeat every 5 minutes until the earphones are charged, or the battery runs out.

Music playback Time: One earphone – Up to 5.5 hours Two earphones – Up to 4.5 hours

Talk time: Up to 5 hours

To charge the earphone:

1. Plug the USB charging cable to both earphone charging jacks.
2. Plug the USB side of cable into a powered USB port.
   Red light on: Charging
   Red light off: Finished charging
3. It takes about 2 hours to finish charging.

graph TD
    A["Top Robot"] --> B["Plug"]
    C["Bottom Robot"] --> B
    B --> D["Power Plug"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333

M4U TW1 EARPHONE CARE

For safe, sanitary use, it is essential to maintain and clean your M4U TW1 earphones periodically. However, excessive cleaning may cause damage and jeopardize the longevity of the product. When not in use, always store headphones in the supplied protective case, and store in a clean and dry environment. Avoid storing in extreme heat or cold temperatures and humidity, and avoid exposure to liquids.

Cleaning...

For regular cleaning, use a slightly damp cloth and gently clean each, then use a dry cloth to remove any residual moisture.

WARNING

Liquids or cleaning solvents can cause irreparable damage to the electronics inside your headphones. The M4U warranty does not cover such damage.

At the end of its useful life, this product should not be disposed of with regular household waste. It should be returned to a collection point for the recycling of electrical and electronic equipment.

The materials can be reused in accordance with their markings. Through re-use, recycling of raw materials, or other forms of recycling of old products, you are making an important contribution to the protection of our environment. The following symbols on the packaging indicate the recycling mandate.

Your local administrative office can advise you of the responsible waste disposal location.

M4U TW1

POWERFUL, WIRE-FREE SOUND FOR ACTIVE LIFESTYLES.

Bluetooth®

Black and white photo of a Psb brand earbuds with a black strap, no visible text or symbols on the device body.

Black M4U TW1 wireless earbuds with 'psb' logo on head (no additional text or symbols visible)

Free from the shackles of messy wires, the M4U TW1 True Wireless Earphones let you enjoy powerful sound with deep bass and ultra-crisp details completely unrestrained. Its unique shape and soft rubber material provides a long-lasting fit that is comfortable and lightweight. Connect to any device quickly and easily with Bluetooth ^® , then use the high-clarity mic and one-touch sensitive button to play/pause, skip tracks and answer calls. These high-performance earphones are sweat and weather resistant and have a rechargeable lithium-ion battery that delivers up to 5 hours of listening.

Enhanced Bluetooth® Technology

Using Bluetooth® and its advanced A2DP wireless audio technology, the M4U TW1 provides fast and easy pairing with any device, and delivers extended range, fewer drop-outs and better battery life. The M4U TW1 balances sound between the left and right channels, and syncs to your phone at the touch of a button.

Superior Sound Quality

No matter if you're listening to music, watching videos or talking on the phone, the M4U TW1 is designed to deliver the best sound. Housing high-performance 6mm drivers, the M4U TW1 pumps out synchronous audio with deep bass and lifelike details.

Touch & Tap Controls

The M4U TW1 works seamlessly with Bluetooth devices, allowing you to answer phone calls and control your music without ever taking out your phone. For added hands-free convenience, the M4U TW1 will notify you when you're paired to a device or running low on battery by using voice prompts.

Innovative Stay Fit Design

Using a unique earhook design combined with a set of soft and comfortable silicone ear tips, The M4U TW1 allows you to customize its fit to stay put while running, biking or at the gym. Its IPX5 water-resistant body and internal nano-coating provides a double layer of protection so you can focus on your music while in the rain or sweating it out during a workout.

Bluetooth

Playback Controls

Rechargeable Battery

USB Charging Cable

Secure Fit

Built-In Microphone

IPX5 Water Resistant

Earphone Tips

Call Answer Controls

Protective Case

• Connect via Bluetooth V4.1 with any enabled device for wireless listening
  • Lightweight, secure fit for walking, running, and exercising

• Take calls, control your music and activate voice assistants with touch controls

• Rechargeable with up to 5 hours of battery life for 1 listening on the go

• IPX5 water resistant construction for protection against sweat and weather

M4U TW1 SPECIFICATIONS

Frequency Response
20Hz-20KHz
THD, total harmonic distortion
0.25% (1kHz/1mW)
Transducer

Type	Dynamic
Operating Principle	Sealed
Size	6mm

Ear Coupling

	In-Ear
Connection
Bluetooth version	Bluetooth V4.1
Bluetooth profiles	A2DP and AVRCP
Operating distance	10 meters

Battery

Music time	One earbud: Up to 5 hoursTwo earbuds: Up to 4.5 hours
Talk time	Up to 5 hours
Standby time	About 80 hours
Charging time	About 2 hours
Charging input	DC 5.0V /500mA

Construction

Driver Enclosure	ABS & Rubber
Eartips	Silicone
Travel Case	EVA

Dimensions (W+H+D)

Overall	60 x 35 x 23mm (2 5/32 x 1 3/8 x 29/32")
Travel Case	116 x 82 x 36mm (4 9/16 x 3 7/32 x 1 13/32")

Weight

9.4g (0.14oz)
Cables

USB Cable

150mm(6") Detachable Tangle-Free

Finish
Black

Empresa Integrante del Lenbrook Group of Companies | 633 Granite Court, Pickering, Ontario, L1W 3K1 www.psbspeakers.com

PSB Speakers, a division of Lenbrook Industries Limited, warrants loudspeaker and subwoofer drivers for five (5) years; amplifiers, powered speakers and subwoofers for one (1) year; and headphones for two (2) years in the USA and Canada. Warranty may vary in other countries so please contact your dealer or local distributor for service.
PSB Speakers, une division de Les Industries Lenbrook Limitée, garantit les enceintes et caisson d'extrême graves du pilote pour cinq (5) ans; amplificateurs, haut-parleurs amplifiés et caisson d'extrême graves pour un (1) an; et écouteurs pour deux (2) ans aux Etats-Unis et au Canada. La garantie peut varier dans d'autres pays aussi, s'il vous plaît contactez votre revendeur ou distributeur local pour le service.
ESPAÑOL PSB Speakers, una división de Lenbrook Industries Limited, garantiza los altavoces (transductores) de sus sistemas acústicos y subwoofers por cinco (5) años; amplificadores, altavoces activos y subwoofers por un (1) año; y auriculares por dos (2) años en los EE.UU. y Canadá. La garantía puede variar en otros países, por lo que debe dirigirse a su concesionario o distribuidor local para obtener servicio.
PSB Speakers, ein Geschäftsbereich von Lenbrook Industries Limited, garantiert Lautsprecher und Subwoofer-Treiber für fünf (5) Jahre, Verstärker, Aktivlautsprecher und Subwoofer für ein (1) Jahr und Kopfhörer für zwei (2) Jahre in den USA und Kanada. Die Garantie kann in anderen Ländern variieren, wenden Sie sich in diesem Fall bitte an Ihren Händler oder örtlichen Distributor für Service.
PSB Speakers, una divisione di Lenbrook Industries Limited, garantisce altoparlanti e subwoofer per cinque (5) anni; amplifiers, altoparlanti e subwoofer alimentati per un (1) anno; e le cuffie per due (2) anni negli USA e in Canada. La garanzia può essere diversa in altri paesi: rivolgersi al proprio rivenditore o distributore locale per assistenza.
PSB Speakers, een divisie van Lenbrook Industries Limited, geeft 5 (vijf) jaar garantie op luidsprekers en subwoofer-drivers; 1 (éen) jaar op versterkers, actieve luidsprekers en subwoofers; en twee (2) jaar op hoofdtelefoons in de VS en Canada. Garantieperiode kan afwijken in andere landen, dus wij verzoeken u contact op te nemen met uw dealer of lokale distributeur voor service.
PSB Speakers, en del av Lenbrook Industries Limited, garanterar drivrutiner för högtalare och subwoofer i fem (5) år; förstärkare, elektriska högtalare och subwoofers i ett (1) år; och hörlurar i två (2) år i USA och Kanada. Garantin kan variera i andra länder, så kontakta din återförsäljare eller en lokal distributör för service.
РУССКИЙ Компания PSB Speakers, являющаяся подразделением Lenbrook Industries Limited, дает гарантию на громкоговорители и сабвуферы на пять (5) лет; на усилители, динамики и сабвуферы с усилителями на один (1) год; на наушники на два (2) года в США и Канаде. Условия гарантии в других странах могут отличаться. Обращайтесь за сервисным обслуживанием к продавцу или дистрибыотору в вашей стране.
A PSB Speakers, uma divisão da Lenbrook Industries Limited, garante controladores para altifalantes e subwoofers durante um (1) ano; e para auscultadores durante dois (2) anos nos EUA e Canadá. A garantia pode variar noutros países, pelo que deve contactar o seu fornecedor ou distribuidor local em relação ao serviço.

What is Covered and What is Not Covered?

Except as specified below, this warranty covers parts and labour to correct all defects in materials and workmanship. The following are not covered by the warranty:

1. Damage, deterioration, malfunction or failure to meet performance specifications resulting from: a Accident acts of nature, misuse, abuse, neglect or unauthorized product modification
   a. Accident, acts of nature, misuse, abuse, neglect or unauthorized product modification. b. Improper installation, removal or maintenance, or failure to follow instructions supplied with the product.
   c. Repair or attempted repair by anyone not authorized by PSB Speakers to repair the product.
   d. Any shipment of the product (claims must be presented to the carrier).
   e. Any cause other than a product defect.

2. Cleaning, initial set-up, inspections with no defects found, or charges incurred for installation, removal or reinstallations of the product.

3. Any product on which the serial number has been defaced, modified, or removed.

4. Accessories, including but not limited to, cables, adaptors, mounting hardware and brackets, and detachable cords.

5. Any product used in any trade or business, or in an industrial or commercial application.

6. Any product purchased outside the country of service, its possessions, or territories.

7. Any problem other than a product defect.

8. Any product not purchased from an authorized PSB Speakers Dealer.

Who May Enforce the Warranty?

This warranty may be enforced only by the original purchaser.

What We Will Pay For

We will pay for all labour and material expenses for items covered by the warranty. Payment of the shipping charges is discussed in the next section of this warranty.

How You Can Get Service

1. If your unit needs service, please take your unit with the original invoice or bill of sale to your PSB Speakers dealer. If you need assistance locating an authorized PSB dealer, please check our dealer locator at www.psbspeakers.com, or contact PSB Speakers.
2. You must pay any shipping charges if it is necessary to ship the product for service. However, if the necessary repairs are covered by the warranty, we will pay the return shipping charges to any destination within the country of service.
3. Wherever warranty service is required, you must present the original dated sales receipt, invoice, or other proof of purchase.

Limitation of Implied Warranties

All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to the length of this warranty.

Exclusion of Damages

PSB Speakers' liability for any defective product is limited to repair or replacement of the product at PSB's option. PSB shall not be liable for damage to other products caused by any defects in PSB's products, damages based upon inconvenience or loss of use of the product, or any other damages, whether incidental, consequential, or otherwise.

How State (Provincial) Law Relates to the Warranty

Some states (provinces) do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages. Therefore, the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary, from state (province) to state (province).

This warranty is enforceable only inside the country of purchase, its possessions or territories.

Keep this warranty statement including the registration date with your proof of purchase for your records.

A Member of The Lenbrook Group of Companies | 633 Granite Court, Pickering, Ontario, L1W 3K1 www.psbspeakers.com

Étendue de la garantie