NUX B-7PSM Wireless In-Ear Monitoring System

Cut The Cord. Be In Command!

The NUX B-7PSM is a wireless personal in-ear monitoring system with automatic RF environment scan, 5.8 GHz interference-free broadcasting frequency, and 24-bit/40kHz high-quality stereo audio transmitting. From any position. On any stage. Hear every note in detail with NUX B-7PSM in-ear monitoring system.

The B-7PSM quickly finds a clean wireless channel and automatically assigns it, offering a super low latency of less than 5.5 ms and has an operation range of 100 feet (30 m) when unobstructed between the Receiver (RX) and Transmitter (TX). It's a super light-weight wireless, mini-compact system designed to clip on and go. The TX features a 1/8" TRS plug (you can use the included adaptor to convert to 1/4"), broadcaster-grade audio via 5.8 GHz digital transmission to the compact RX. The RX's clip design can easily fit to your shirt, belt, or guitar strap. And, with NUX's newest automatic frequency hopping technology, B-7PSM is reliable and stable while you perform on stage.


  • Output Volume Adjustment: -64dB to 0dB (0.5dB steps)
  • Operating Frequency band: 5.8 GHz
  • Operation Length: <100 Feet (30 Meter) Outdoor Unobstructed, <33 Feet (10 Meter) Outdoor with Obstructions
  • Sampling Rate: 24 bit/40 kHz
  • Frequency Response: 20 Hz to 19 kHz
  • Latency: < 5.5ms
  • Dynamic Range: 92dB
  • THD+ Noise: <0.6% @ 1kHz
  • Built-In Battery Capacity (TX and RX): 450mAh/3.7V
  • Battery Running Time: >4 Hours
  • Battery Charging Time: Around 1.5 Hours
  • Power Consumption: TX <90mA, RX<45mA
  • TX Impedance: 3.5 kOhms
  • Maximum Input Level: 7.6Vpp (8.6dBV or 2.7Vms)
  • RX Suggestion Phone Impedance: 16~32 Ohms
  • Maximum Output Power: 57mWrms (RLOAD=16 Ohms, 1 kHz)