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Xvive Audio U4R2 Wireless In-Ear Monitor System with Two Receivers (2.4 GHz)

BH #XVU4R2 • MFR #U4R2
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Xvive Audio U4R2 Wireless In-Ear Monitor System with Two Receivers (2.4 GHz)
Key Features
  • 2.4 GHz Band Works Anywhere in the World
  • Works with Any Type of Headphones
  • Transmitter Plugs into XLR or 1/4" Gear
  • 5 Hours on Built-In Rechargeable Battery
The U4RR2 Wireless In-Ear Monitor System from Xvive Audio provides performers and presenters a hands-free, cost-effective, and expandable solution that supplies 24-bit/48 kbps digital sound quality to their favorite in-ear and headphone monitors. This configuration includes two receivers, both able to receive the digital signal from the single included transmitter; ready for plug-and-play use in a wide variety of settings including musical venues and and theatres, houses of worship, schools, corporate conference rooms, and more.
More Details

Xvive Audio U4R2 Overview

The U4RR2 Wireless In-Ear Monitor System from Xvive Audio provides performers and presenters a hands-free, cost-effective, and expandable solution that supplies 24-bit/48 kbps digital sound quality to their favorite in-ear and headphone monitors. This configuration includes two receivers, both able to receive the digital signal from the single included transmitter; ready for plug-and-play use in a wide variety of settings including musical venues and and theatres, houses of worship, schools, corporate conference rooms, and more.

The portable, easy-to-use U4 system features road-worthy components housed in tough molded-plastic and cast-metal chassis built to handle the rigors of touring and designed to work with a huge variety of audio gear. The components are powered by internal non-replaceable batteries that offer 5 hours of operating time and are recharged via USB ports.

The transmitter works with basically any mixer or other device that has an available balanced XLR or unbalanced 1/4" output jack. Just plug the transmitter in, and it will broadcast the incoming audio to any of its six selectable 2.4 GHz channels. Simply set the bodypack receivers to the same channel and you're good to go. The system provides a 90' line-of-sight transmission range and a 5 ms latency, low enough for musical applications.

Easy to Use, Flexible, Expandable
  • Simple to use: plug in the tranmitter and set the transmitter and two receivers to the same channel—that's it
  • The 2.4 GHz system works anywhere in the world—ready to go where the tour goes
  • The U4 receiver can work with multiple transmitters, you can add more as you need them
  • The system offers 6 wireless channels to choose from, allowing you to expand the system with additional transmitters (available separately) and send different monitor mixes, specifically tailored to the needs of your performers
Digital Sound Quality, Wireless Convenience
  • The U4 offers 24-bit / 48 kb/s digital audio with a 107 dB dynamic range and a 20 Hz to 20 kHz frequency range
  • Transmission range is 90' line of sight and the latency is 5 ms
  • A built-in rechargeable battery powers each component for 5 hours 
  • Belt clip and volume control on receivers
  • Works with a wide range of in-ear and headphone monitors
Versatile Input Modes
  • LINE MODE: Use with mixers or other professional audio devices that send line-level signals.
  • AUX MODE: Use when connecting consumer audio devices such as portable audio players or computers

Xvive Audio U4R2 Specs

Tuning Bandwidth
2400 to 2483.5 MHz
Working Range
Up to 90' (Actual Range Depends on Rf Signal Absorption, Reflection, and Interference)
Audio Frequency Response
20 Hz to 20 KHz (-3 dB)
Dynamic Range
107 dB
RF Sensitivity
-88 dBm
Total Harmonic Distortion
0.2%
RF Output Power
10 mW E.I.R.P. max
Operating Temperature Range
0 to 135° F / -18 to 57° C (Battery Characteristics May Limit this Range)
Channels
6
Latency
Less than 5 ms
Audio Resolution
24-bit / 48 Kb/s
Input Impedance
47 Kilohms
Output Impedance
6 to 600 Ohms
Audio Input Connectors
XLR
Audio Output Connectors
3.5 mm
Audio Input Levels
Aux Mode: -10 dBV, Maximum +12.2 dBu
Line Mode: +4 dBu, Maximum +22 dBu
Antenna Impedance
50 Ohms
Antenna Type
1/4 Wave Sleeve Dipole, Non-Removable
Batteries
Transmitter: 3.7 V Rechargeable Li-Ion, 860 mAh Receiver: 3.7 V Rechargeable Li-Ion, 1200 mAh
Battery Life
5 Hours
Dimensions
Transmitter: 1.2 x 1.1 x 3.9" / 30 X 28 X 100 mm
Receiver: 1.9 x 1.6 x 2.4" / 47 X 41 X 60 mm
Weight
Transmitter: 3.2 oz / 90 g
Receiver: 4.2 oz / 118 g
Packaging Info
Package Weight
1.35 lb
Box Dimensions (LxWxH)
6.7 x 5 x 4.7"

Xvive Audio U4R2 Reviews

Gamechanger

By Menachem
Rated 5 out of 5
Date: 2025-02-16

Worked beyond expactations

Top quality Audio wireless solution for our studio

By Tomer
Rated 5 out of 5
Date: 2023-03-14

The product is amazing - serve us as an in-ear solution for remote interviews. the quality of the sound and the product is really top notch. Wish I found this product earlier. Recommended AAA+++

See any errors on this page?

can this be expanded to have more receivers ...

can this be expanded to have more receivers later?
Asked by: Antonio
Yes, you can add more U4R receivers to expand the monitoring system.
Answered by: Lisa S
Date published: 2021-06-01

Can you plug a microphone directly into the ...

Can you plug a microphone directly into the transmitter?
Asked by: Autumn
The connector for the transmitter on the Xvive Audio U4R2 Wireless In-Ear Monitor System with Two Receivers (2.4 GHz) is for line-level devices only. So, a microphone cannot be connected directly to it.
Answered by: Daniel O
Date published: 2025-05-16

Is this mono or stereo?

Is this mono or stereo?
Asked by: Jonathan
Hi. Can I have 2 transmitter units connected in the same mixer?
Answered by: Antonio
Date published: 2025-04-09
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