The NUX B-7 PSM is designed to let you hear your own mix (vocals, instruments, backing tracks, etc.) wirelessly through in-ear monitors without being tethered by cables. Whether you’re a singer, guitarist, drummer, or sound engineer, the B-7PSM gives you pristine stereo audio, ultra-low latency, and rock-solid wireless performance — all in a pocket-sized design.

True Wireless Freedom

Enjoy up to ~100 ft / 30 m of line-of-sight range so you can move much freely on stage or in your venue.

Crystal-Clear Audio

24-bit hi-resolution wireless transmission with < 5.5 ms latency ensures your sound stays tight and natural.

Reliable Runtime

Get ~4 hours of continuous use per charge on both transmitter and receiver.

Cut the Cord, Be in Command

Compact, reliable, and ready for any gig.

Quick & Easy Setup

Just power on both units to pair instantly.

Compact, Clip-On Design

Lightweight receiver clips comfortably to your belt or strap.

Rock-Solid Connection

Avoid dropouts, interference, and noise.

NUX B-7 PSM receiver plugged into an electronic music synthesizer on a perforated surface with cables

Clean, Stable Wireless Performance

Why 5.8GHz Matters

Most wireless devices, including Wi-Fi routers, Bluetooth gear, and many older wireless systems, operate in the 2.4GHz range. 

By operating in the 5.8GHz range, B-7PSM offers significant advantages over the congested 2.4GHz range. You can expect a stronger connection, fewer dropouts, and a cleaner signal path for your monitor mix, even in crowded venues filled with smartphones and wireless equipment.

Diagram showing a person with audio equipment labeled B-7PSM Receiver, B-7PSM Transmitter, and Personal Mixer.

Smart, Simple, & Reliable

Just turn on the transmitter and receiver — they automatically find the best frequency and pair instantly. No menus, no guesswork.

With a 100-feet line-of-sight range, the B-7 PSM gives you consistent audio performance in venues large and small.

NUX wireless audio transmitter and receiver set with carrying case on a white background

Stay Charged, Stay Tuned

With B-7 PSM built-in long-lasting battery, you can play for up to 4 hours non-stop. The included portable charge case provides up to 15 hours battery life and can charge the system for approximately 3 times.

  • 4 Hours non-stop play time
  • Charging case provides 15 hours of battery life

Specifications

Detailed product specifications and features

Technical

  • Operating Frequency Band 5.8 GHz
  • Audio Quality 24-bit / 40 kHz
  • THD+ Noise < 0.6% @ 1 kHz
  • TX Input Max Level 7.6 Vpp (≈ 2.7 Vrms)
  • TX Impedance 3.5 kΩ
  • RX Output Max output power: 57 mW RMS (into 16 Ω)
  • Volume Control -64 dB to 0 dB in 0.5 dB steps on RX

Connectivity

  • Operation Range (Line-of-Sight) Up to 100 feet / 30 meters (environment-dependent)
  • Operation Range (w/ Obstructions) Up to 32 feet / 10 meters
  • Frequency Response 20 Hz – 19 kHz
  • Latency < 5.5 ms

Hardware

  • TX & RX Dimensions 2.3 x 1.4 x 1 inch ea
  • TX & RX Weight 32g ea
  • Charging Case Weight 130g
  • TX & RX Battery Capacity 3.7 V / 450 mAh
  • Charging Case Battery Capacity 3.7 V / 3000 mAh
  • TX & RX Battery Life Up to 4 hours of playing time
  • Charging Case Battery Life Up to 15 hours (3 charge cycles)

What's Included

1 x B-7 PSM Transmitter, 1 x B-7 PSM Receiver, 1 x Charging Case, 1 x USB Type-C, 1 x Stereo Audio Adapter, User Manual