U3 - Microphone Xvive - Free user manual and instructions

Product Type	Wireless Microphone System
Brand	Xvive
Model	U3
Frequency Band	2.4 GHz ISM
Operating Range	Up to 27 m (90 ft)
Audio Frequency Response	20 Hz – 20 kHz (-3 dB)
Dynamic Range	110 dB
Signal-to-Noise Ratio	110 dB
Latency	<5 ms
Number of Channels	Up to 6 (simultaneous)
Battery Type	Rechargeable Li-Ion 3.7V, 860 mAh
Battery Life	Up to 5 hours
Charging Time	Approximately 2.5 hours
Power Input	USB (Micro-USB)
Transmitter Weight	93 g
Receiver Weight	92 g
Transmitter Dimensions	31 x 29 x 98 mm
Receiver Dimensions	31 x 29 x 98 mm
Housing Material	Molded plastic and cast metal
Antenna Type	1/4 wave sleeve dipole, non-removable
Audio Input Connector	Balanced XLR male
Audio Output Connector	Balanced XLR female
Supported Microphone Types	XLR dynamic and battery-powered condenser
Input Modes	Mic (0 dB), Line (-10 dB)
Audio Resolution	24-bit / 48 kHz
RF Output Power	10 mW E.I.R.P.
Operating Temperature	-18°C to 57°C

Frequently Asked Questions - U3 Xvive

How do I pair the transmitter and receiver?

Simply turn both devices on and ensure they are set to the same channel using the channel switch. The transmitter and receiver will automatically link; the RF LED on the receiver will light up when the connection is successful.

What is the battery life and how do I charge the U3?

The U3 offers up to 5 hours of battery life. Charging is done via the USB port with the included cable. Turn off the power switch while charging, and avoid using the unit during charging to maximize battery lifespan. A full charge takes approximately 2.5 hours.

Can I use the Xvive U3 with any microphone?

The U3 transmitter accepts XLR male input and is designed for XLR dynamic microphones and battery-powered condenser microphones. It cannot be used with passive ribbon or phantom-powered condenser microphones unless they have an internal battery or external power.

How do I change the channel if the switch is locked?

The channel switch locks after 15 seconds to prevent accidental changes. To unlock, double-click the channel button. Then you can press the button to cycle through channels 1–6. Both transmitter and receiver must be set to the same channel.

Why is there no sound even though the devices are on?

Check that the RF LED on the receiver is lit, indicating a link. Ensure the microphone is turned on (if battery-powered) and that the input gain is set correctly. Also verify that the volume on your mixer or speaker is turned up. If the RF LED is off, the transmitter and receiver may be on different channels.

How can I improve signal stability if the RF LED flickers?

Keep the receiver at least 3 meters away from Wi-Fi routers or other 2.4 GHz devices. Try changing to a different channel on both units. If interference persists, shorten the distance between transmitter and receiver.

Can I use multiple receivers with one transmitter?

Yes, one transmitter can be used with multiple receivers as long as they are all set to the same channel. This is useful for sending the same audio signal to multiple destinations.

What is the maximum range of the U3 system?

The specified range is up to 27 meters (90 feet) in open space. Actual range may be shorter due to obstacles, RF interference, and signal absorption. For best results, maintain line-of-sight between transmitter and receiver.

Is the U3 compatible with active speakers?

Yes. The receiver outputs a balanced XLR signal that can be plugged directly into active speakers, mixers, recorders, or any device with an XLR input. Use the Line mode (-10 dB) when connecting to line-level inputs.

How should I clean and maintain the Xvive U3?

Clean the housing with a soft, slightly damp cloth. Do not use solvents or abrasive cleaners. Avoid exposure to moisture, extreme temperatures, and direct sunlight. When not in use for extended periods, store in a cool, dry place and recharge the batteries every three months to maintain battery health.

USER MANUAL U3 Xvive

Exterior view of a black and silver digital wireless device labeled 'TRANSMITTER 2.40MHz DIGITAL WIRELASS SYSTEM' (no additional text or symbols visible on the device body)

This Class B digital apparatus complies with Canadian ICES-003.

IC Caution: RSS-Gen Issue 4 December 2014" & "CNR-Gen 4e Décembre 2014:

This device complies with Industry Canada licence-exempt RSS standard(s).

Operation is subject to the following two conditions:

(1) This device may not cause interference, and
(2) This device must accept any interference, including interference that may cause undesired operation of the device.

Radio Approvals:

FCC Part 15.249, FCC Part 15 B, RSS-210 (Canada), EN 300 440 (Europe), EN 301.489 (Europe), Japan Radio 2.4GHz Band (Japan), MIC ARIB STD-T66 (Japan), California 65, CE.

FCC CERTIFICATION

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 CAUSEUNDESIRED OPERATION.

Warning: Changes or modifications not expressly approved in writing by Xvive may void the users authority to operate this equipment.

RF Exposure Statement: This transmitter must not be co-located or operated in conjunction with any other antennae or transmitter.

Note: 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 particular 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 interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the 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 Canadian ICES-003.

CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT REMOVE SCREWS.

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THE APPLIANCE TO RAIN OR MOISTURE.

Hereby, SHENZHEN FZONE TECHNOLOGY CO., LTD, declares that this type of equipment is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU

SAFETY INSTRUCTIONS FOR LITHIUM-ION RECHARGEABLE BATTERIES

If abused or misused, the rechargeable batteries may leak. In extreme cases, they may even present a risk of explosion, fire, heat, smoke or gas. Xvive does not accept any liability for damage arising from abuse or misuse.

• Keep away from children.
• Only charge rechargeable batteries with chargers recommended by Xvive.
• Observe correct polarity.
• Pack/store charged rechargeable batteries so that the terminals cannot contact each other (danger of shorting out/fire hazard).
• Do not expose to moisture.
• Switch rechargeable battery-powered products off after use.
• Only charge rechargeable batteries at ambient temperatures between 10^ / 50^ and 40^ / 104^ .
• When not using rechargeable batteries for extended periods of time, charge them regularly (about every three months).

• Do not mutilate or dismantle.

• Do not heat above 60^ / 140^ , e.g. do not expose to sunlight or throw into a fire.

• Immediately remove rechargeable batteries from obviously defective products.
• Do not continue to use defective rechargeable batteries.
• Only use rechargeable batteries specified by Xvive.
• Dispose of rechargeable batteries at special collection points or return them to your specialist dealer.
• Store the products in a cool and dry place at room temperature (approx. 20^ / 68^ ).
• Remove the rechargeable batteries if the products will not be used for extended periods of time.

INFORMATION ABOUT COLLECTION AND DISPOSAL OF OLD ITEMS AND USED BATTERIES

These symbols on the products, packaging, or on any documents in the package mean it is incorrect to mix the used electrical and electronic products and batteries with general household garbage.

To protect our environment, please take old products and used batteries to proper collection places, and follow your national legislation and the Directives 2012/19/EU and 2006/66/EC.

To deal with these old products and batteries properly, please help to save valuable resources and prevent any possibility of side effects on human health and our environment due to the inappropriate disposal of the old products and used batteries.

You can contact your local authority for getting more helpful information on how to dispose the recycling and collection of the old products and batteries.

[For business users in the European Union]

If you want to discard electrical and electronic item, please contact your dealer or supplier for further information.

[Information on Disposal in other Countries outside the European Union]

These symbols are only valid in the European Union. Please contact your local authorities or dealer for more information on disposal of old items and used batteries.

Cd

IMPORTANT SAFETY INSTRUCTIONS PLEASE READ THESE INSTRUCTIONS AND KEEP THEM IN A SAFE PLACE

WARNING: BEFORE USING YOUR XVIVE U3 MICROPHONE WIRELESS SYSTEM, CAREFULLY READ THE OPERATING INSTRUCTIONS.

1. Carefully observe all instructions in the U3 manual

2. Do not to perform service operations beyond those described in the U3 Manual. Service is required when the apparatus was damaged in any way, such as:

3. liquid was spilled or objects were dropped into the device,

4. the unit was exposed to rain or moisture,
5. the unit does not operate normally or significant changes in performance occur,

6. the unit is dropped or the housing is damaged.

7. Do not place near heat sources, such as radiators, heating ducts, or appliances which produce heat.

8. Guard the device against objects or liquids entering the device. Do not use or store the unit close to water.
9. Clean only with a damp cloth.
10. Only use attachments/accessories specified by the manufacturer.
11. Prolonged listening at high volume levels may cause irreparable hearing loss and/or damage. Always be sure to practice "safe listening."

U3 SET PRODUCT INTRODUCTION

• 2.4 Ghz band is ideal for wireless systems for dynamic microphones and it is approved for use worldwide.
  • Less than 5 ms latency, simultaneous transmission on 6 channels
• Wide frequency response range 20 Hz – 20 kHz
• Range up to 27 m / 90 feet (actual range depends on RF signal absorption, reflection and interference)
• 5 hours of battery life (rechargeable battery for both Transmitter & Receiver)
• Works with XLR dynamic microphones and battery-powered condenser microphones
• Mic mode for microphone and Line mode for output from other equipment
  • High resolution audio at 24-bit/48kbps
  • Dynamic range 110 dB
  • Signal-to-Noise ratio 110 dB
• The U3 Wireless System is designed to take the complexity and frustration out of traditional wireless microphone systems and helps you create a flexible all-in-one solution that turns any dynamic microphone into a wireless microphone.
• Can also be used as wireless audio source for active speakers.

PACKAGE DETAILS

U3 Transmitter 1x
U3 Receiver 1x
USB Cable 1x
Manual 1x
Bag 1x

QUICK START

1. Plug the transmitter into your XLR dynamic microphone or battery-powered condenser microphone.

Line drawing of a device connected to an electrical control panel (no text or symbols visible)

1. Plug the Receiver into the Mixer.

QUICK START

Line drawing of two laboratory gas collection devices with control knobs (no text or symbols)

1. Turn transmitter and receiver on and check that they operate on the same channel.

Line drawing of a rectangular device with a circular button and internal components (no text or symbols)

1. The LED on the transmitter will be lit continuously after the connection was established successfully.
   

1. Check the connection by talking through the microphone.

① Mic In: XLR microphone input jack
② Spring: circumferential spring provides ground connection to metal housing parts
③ Mic lock: secures transmitter to the microphone
④ Input level switch: MIC = 0dB input
⑤ Power switch: switches unit on/off
⑥ Channel status LED: indicates selected channel
⑦ Channel switch: selects channels 1-6
⑧ USB charging port
⑨ Power status LED: indicates power status:
⑩ Antenna.

$$ \text { LINE } = - 1 0 \text { dB input } $$

$$ \text { Led off } = 100 \% \sim 30 \% $$

$$ \text { Solid red } = 29 \% \sim 11 \% $$

$$ \text { Blinking red } = \text { less than } 10 \% $$

① XLR OUT: XLR microphone input jack
② Power switch: switches the unit on and off
③ Channel status LED: indicates selected channel
④ Channel switch: selects channels 1-6
⑤ USB charging port
⑥ RF Status LED:
ON = Transmitter is on and link is established Flashing = Signal connection interference OFF = Transmitter off or not linked
⑦ Power status Led: indicates power status.
Led off = 100% \~ 30%
Solid red = 29% \~ 11%
Blinking red = less than 10%
⑧ Antenna.

SPECIFICATIONS

	U3 MICROPHONE WIRELESS SYSTEM
Transmission bandwidth	2400 – 2483.5 MHz
Working range	Up to 27 m / 90 feet. Actual range depends on RF signal absorption, reflection and interference.
Audio frequency response	20 Hz - 20 kHz (-3 dB). Depending on microphone type or input signal.
Dynamic range	110 dB
Battery life	Up to 5 hours
RF sensitivity	-88 dBm
Total harmonic distortion	0.2%
RF output power	10 mW E.I.R.P. max
Operating temperature range	-18°C to 57°C. Battery characteristics may limit this range.
Number of channels	Up to 6 channels.

U3 TRANSMITTER U3 RECEIVER

Dimensions	31 X 29 X 98 mm	31 X 29 X 98 mm
Weight	93 g	92 g
Housing	Molded plastic and cast metal	Molded plastic and cast metal
Battery	3.7 V rechargeable Li-lon, 860 mA	3.7 V rechargeable Li-lon, 860 mA
Impedance	Input 15 kΩ (1 KHz)	Output 470 Ω (1 KHz)
Audio input connector	Balanced XLR male input
Audio output connector		Balanced XLR female output
Maximum input level	Mic mode: 2.8 Vp-p Line mode: 7 Vp-p
Maximum output level		2.8 Vp-p
Gain adjustment range	Two modes: Mic 0 dB, Line -10 dB
Battery life	Up to 5 hours	Up to 5 hours
Supported microphone types	XLR dynamic microphone and battery-powered condenser microphones.
Antenna impedance	50 Ω	50 Ω
Antenna type	1/4 wave sleeve dipole, non-removable	1/4 wave sleeve dipole, non-removable
Number of antennae	1	2

BATTERIES AND CHARGING

Simple line drawing of two connected audio equipment devices (no text or symbols)

Diagram of a wall-mounted device with two connectors and a plug, enclosed in a circle (no text or symbols)

CHARGING TIMES	BATTERY LIFE
15 minutes	30 minutes
30 minutes	1 hour
1 hour	2 hours
2,5 hours	5 hours

Always store the U3 at room temperature.

When storing the unit, please check the battery state regularly and charge if necessary.

Connect to the outletConnect Power

Note:

Turn off the power switch while charging.

Please do not use the U3 when charging.

This may reduce battery life.

2.4 GHz WIRELESS OVERVIEW AND INTERFERENCE

The U3 operates in the 2.4 GHz ISM band, the same band used by Wi-Fi, Bluetooth, and other wireless systems. 2.4 GHz is an open band and as such does not require a license to operate worldwide.

Tips and Methods to improve the performance of the wireless system

1) Keep more than 3 meters distance between the U3 receiver and other transmitters such as Wi-Fi routers.
2) If you experience interference from Wi-Fi devices in the vicinity, try changing to a different channel on the U3 transmitter and receiver.
3) If necessary, shorten the distance between the U3 receiver and transmitter.

2.4 Ghz Frequency Tables

CHANNEL 1	2402 MHz, 2480 MHz, 2482 MHz
CHANNEL 2	2408 MHz, 2472 MHz, 2474 MHz
CHANNEL 3	2416 MHz, 2464 MHz, 2466 MHz
CHANNEL 4	2434 MHz, 2440 MHz, 2442 MHz
CHANNEL 5	2427 MHz, 2448 MHz, 2450 MHz
CHANNEL 6	2422 MHz, 2456 MHz, 2458 MHz

U2 channels 1-4 use the same frequencies as U3/U3C/U4 channels 1-4. A maximum of six U2/U3/U3C and U4 sets can be used at the same time.

TROUBLESHOOTING

ISSUE	SOLUTION
No sound	Check that the U3 Receiver's RF LED is lit.Check that the microphone is turned on and that you receive a signal from the U3 transmitter.Check that the power switch is turned on for both the Transmitter and the Receiver.Ensure that the U3 Transmitter and Receiver are on the same channel.The Receiver can only be paired with one Transmitter at a time.
Distortion or weak sound	Switch the gain mode to "Line" or "Mic"Adjust the output signal from the transmitting device.
Signal instability: RF LED flickering, or off completely	See, "Tips and methods to improve wireless system performance" page 15
Unable to switch the channel	The channel switch locks after 15 seconds. Double-click the channel button to unlock and reset.
Multiple connect	One transmitter can be used with multiple receivers on the same channel.

APPLICATION EXAMPLE

graph LR
    A["Dynamic Microphone"] --> B["U3 Transmitter"]
    C["DI Or XLR Output Gear"] --> B
    D["Mixer"] --> B
    B --> E["Live Sound Mixers"]
    B --> F["Portable PA Systems"]
    B --> G["Recorders"]
    B --> H["Active Loudspeakers"]
    I["U3 SET"] --> J["U3 Receiver"]
    J --> B

U3 SET DYNAMIC MICROPHONE WIRELESS SYSTEM

SHENZHEN FZONE TECHNOLOGY CO., LTD.

2nd floor, Building 12, Xicheng Industrial Area, Xixiang Town,

Baoan District, Shenzhen Guangdong China. 518101

E-mail: [e-mail]

www.xvive.com

CHINA PATENT NUMBERS ZL 2016 3 0165464.8

Note: The manufacturer reserves the right to change these specifications without notice.