
Xvive U45R4 In-Ear Monitor Wireless System with 1x Transmitter & 4x Receivers
Expected June 30, 2026
- 5.8 GHz True Diversity wireless system.
- Solid RF connection over a 100 ft distance (actual range depends on RF signal absorption, reflection and interference.)
- 110 dB signal-to-noise ratio provides clear, detailed audio at any volume.
- High-resolution 24-bit / 48 kHz audio.
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The U45R4 In-Ear Monitor Wireless System delivers great-sounding audio to your favorite in-ear monitors or headphones. Enhance your stage performance by freeing yourself from the tangles and limitations of cables. The U45R4's plug-and-play design makes it incredibly portable and easy to use. The U45R4's top-quality components and durable metal chassis ensure reliable wireless performance at every show or session.
The Xvive U45R4 In-Ear Monitor Wireless System is a compact, reliable solution for musicians and performers needing high-quality wireless audio. Operating on the 5.8 GHz band, it offers clear, interference-free transmission over long distances. The lightweight Transmitter and Receiver feature low latency, making the system ideal for live performances, rehearsals, and wireless instrument monitoring. With excellent sound clarity and a wide frequency range, it suits both professional and hobbyist applications.
Xvive U45R4 In-Ear Wireless Monitor System Features:
- 5.8 GHz True Diversity wireless system.
- Solid RF connection over a 100 ft distance (actual range depends on RF signal absorption, reflection and interference.)
- 110 dB signal-to-noise ratio provides clear, detailed audio at any volume.
- High-resolution 24-bit / 48 kHz audio.
- Broad 20 Hz - 20 KHz frequency response.
- 110 dB dynamic range.
- Less than 5ms latency.
- Up to 6 U45 systems can be used in one area simultaneously.
- 5 hours of battery life (onboard rechargeable battery in both Transmitter and Receiver.)
- Provides smooth frequency response with any headphones.
- Mono balanced XLR or mono unbalanced TS input.
- Aux or Line input mode.
- Scans for wireless status and selects the best channel.
Xvive U45R4 Product Specifications:
| U45 WIRELESS IN-EAR MONITOR SYSTEM | |
|---|---|
| Tuning bandwidth | 5.8 GHz |
| Working range | Up to 100 ft actual range; depends on RF signal absorption, reflection and interference |
| Frequency response | 20 Hz - 20 KHz (-3 dB) |
| Dynamic range | 110 dB |
| Signal-to-noise ratio | 110 dB |
| RF sensitivity | -88 dBm |
| Total harmonic distortion | 0.2% |
| RF output power | 25 mW E.I.R.P. max |
| Operating temperature range | 0˚C to 45˚C (battery characteristics may limit this range) |
| Channel count | Six (up to 6 sets can be used in one area simultaneously) |
| Latency | Less than 5 ms |
| High-resolution audio | 24-bit / 48 kHz |
| U45 TRANSMITTER | |
|---|---|
| Dimensions | 30 x 28 x 100 mm |
| Weight | 90 g |
| Housing | Molded plastic and cast metal |
| Battery | 3.7V Rechargeable Li-ion, 860 mA |
| Impedance | Input: 220 kΩ (1 kHz) |
| Audio input connector | Balanced XLR male input |
| Audio output connector | N/A |
| Mode | Aux mode: -10 dBV | Max. +12.2 dBu Line mode: +4 dBu | Max. +22 dBu |
| Battery life | Up to 5 hours |
| Antenna impedance | 50Ω |
| Antenna type | 1/4 wave sleeve dipole, non-removable |
| Number of antennas | 1 |
| U45 RECEIVER | |
|---|---|
| Dimensions | 47 x 41 x 60 mm |
| Weight | 118 g |
| Housing | Molded plastic and cast metal |
| Battery | 3.7V Rechargeable Li-ion, 12000 mAh |
| Impedance | 6-600Ω |
| Audio input connector | N/A |
| Audio output connector | 3.5 mm dual mono output |
| Mode | N/A |
| Battery life | Up to 5 hours |
| Antenna impedance | 50Ω |
| Antenna type | 1/4 wave sleeve dipole, non-removable |
| Number of antennas | 2 |
Each U45R4 Retail Box Includes:
(1) Xvive U45R4 In-Ear Monitor Wireless System Transmitter
(4) Xvive U45R4 In-Ear Monitor Wireless System Receivers
(1) USB Charging Cable
(1) Bag
(1) User Manual
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