B-7PRO 2.4 GHz wireless in-ear monitor system

The NUX B-7 PRO is a game-changing wireless in-ear monitor system, designed for musicians who demand high-quality audio, ease of use, and total freedom on stage. With interference-free 2.4 GHz transmission, 24-bit / 48 kHz high-resolution sound, and ultra-low latency, the B-7 PRO ensures crystal-clear monitoring without dropouts. Whether you’re performing live, rehearsing, or recording, this system provides seamless wireless audio monitoring with an intuitive automatic pairing system.

A key feature of the B-7 PRO is its USB audio interface capability, allowing you to monitor and record audio directly from your computer or mobile device. This makes it ideal for musicians who want to play along with a click-track, backing tracks, or rehearse with recorded mixes. The high-definition color LCD display provides all essential information at a glance, even in dark stage environments, while the adjustable Low Latency Mode and Stable Mode offer flexibility depending on your performance setting.

After your performance, simply place the receiver (belt pack) onto the transmitter, and it will automatically charge on the go using the built-in battery of the transmitter. This means your receiver recharges while traveling to your next gig, ensuring it's ready whenever you are.


Key Features

• Premium Stereo Audio Quality – 24-bit / 48 kHz resolution for ultra-clear, detailed sound.
• USB Audio Interface – Connect to a PC, Mac, or smartphone to monitor click-tracks, backing tracks, or DAW playback directly through your in-ears.
• Ultra-Low Latency – Enjoy near-instantaneous sound transmission with just 7.3 ms latency in Low Latency Mode.
• Automatic Charging on the Go – After performing, dock the receiver onto the transmitter for convenient recharging while traveling.
• Long-Distance Wireless Freedom – Operates up to 50 meters (165 feet) without dropouts or interference.
• Automatic Pairing System – Turn on the TX (transmitter) and RX (receiver) for instant synchronization.
• High-Definition Color LCD Display – Easily monitor battery status, signal strength, and settings.
• Adjustable Transmission Modes – Choose between Low Latency Mode for real-time monitoring or Stable Mode for interference-prone environments.


User-Friendly & Versatile Design

• Up to 6 Hours Battery Life – Built-in Li-ion rechargeable batteries provide long-lasting performance.
• Effortless Charging – Place the RX on top of the TX to recharge without additional cables.
• Custom Boot-Up GIF – Personalize your startup screen with a custom animated logo or image.
• Interference Management – For optimal performance, keep the B-7 PRO RX at a safe distance from the NUX B-8 TX to avoid interference.


Specifications

• Operating Frequency Band: 2.4 GHz (2400-2483.5 MHz)
• Transmission Mode: Frequency Hopping
• RF Output Power: 10mW E.I.R.P. max
• Audio Quality: 24-bit / 48 kHz
• Frequency Response: 20Hz - 20kHz
• Latency: 7.3ms (Low Latency), 10.85ms (Default), 14.33ms (Safe Mode)
• Unbalanced Input Impedance: 10kO
• Balanced Input Impedance: 20kO
• AUX Input Level: 2.1 Vrms (8.7 dBu) max
• Balanced Input Level: 9.8 Vrms (22 dBu) max
• Headphone Output Impedance: Minimum 13O
• Headphone Max Output Power per Channel: 57mW (THD <0.1%, RLOAD = 16O, 1kHz)
• Channel Separation: -105dB
• THD+N: <0.01% typical
• Dynamic Range: 110dB A-weighted
• Output Level Adjustment Range: Mute -86dB to +12dB
• Auto-Off Function: Turns off after 10 minutes of inactivity or lost connection
• Built-in Battery: TX: 3.7V / 3000mAh Li-polymer / RX: 3.7V / 400mAh Li-polymer
• Battery Life: Up to 6 hours (TX & RX)
• Power Requirement: DC 9V, 1A min, negative tip power supply (Transmitter)
• Operating Range: Up to 50m (165 ft)
• TX Dimensions: 140mm × 97mm × 53mm (L × W × H)
• TX Weight: 525g
• RX Dimensions: 47mm × 71mm × 22mm (L × W × H)
• RX Weight: 51g