The B-7 Pro is a professional wireless in-ear monitoring system operating on the 2.4GHz digital band. It provides a high-quality stereo audio signal with ultra-low latency and a range of up to 50 metres, ideal for live performers and stage use. The compact receiver (RX) can be securely clipped to clothing or a guitar strap and is rechargeable either via USB-C or directly from the transmitter (TX).
The transmitter is also rechargeable, but can run continuously when connected to the included 9V DC power adapter. It also functions as a USB audio interface, allowing direct recording to a PC or Mac. A full-colour display on the TX shows real-time signal strength and battery levels for both units, and provides access to an intuitive menu system for adjusting levels, display settings, and wireless transmission options.
The B-7 Pro includes a variety of input options including balanced L/R signal inputs, a stereo Aux input, and a wired Phones output. For added flexibility, it also comes with a screw-thread adaptor, allowing the transmitter to be mounted using standard action camera accessories, such as stands or clips.
In short, the B-7 Pro combines cutting-edge wireless technology with smart, practical features—making it a powerful and reliable monitoring solution for even the most demanding stage and studio environments.
Highlights
- 2.4GHz digital wireless transmission with up to 50m range
- High-quality stereo audio with ultra-low latency
- Rechargeable receiver (RX) – clip-mountable and USB-C or TX-powered
- Transmitter (TX) can operate on battery or via 9V DC power adaptor
- TX doubles as a USB audio interface for PC/Mac recording
- Full-colour TX display for signal strength, battery, and settings menu
- Balanced L/R inputs, Aux in, and Phones out on the transmitter
- Includes screw adaptor for action cam-style mounting options
- Ideal for live performers, musicians, and studio monitoring
Technical Specifications
- Power supply: 9Vdc 1200mA (adaptor supplied)
- Batteries: Li-polymer 3.7V 3000mAh (TX), 400mAh (Rx)
- Connections: Transmitter
- L+R XLR/jack, Aux 3.5mm, Phones 3.5mm, USB-C (data), DC jack
- Connections: beltpack receiver
- Headphones out 3.5mm (13ohm min.), USB-C (charge)
- Carrier frequencies: 2400-2483.5MHz (frequency hopping)
- RF output power: 10mW E.I.R.P max.
- Range: 50m max.
- Sampling format: 24-bit, 48kHz
- Frequency response: 20Hz - 20kHz
- Latency: 7.33 - 10.85 - 14.33ms (fast-default-safe modes)
- Input impedance: 20k Ohm balanced, 10k Ohm unbalanced
- Input level: 9.8Vrms (22dBu) max.
- Auxiliary input: 2.1Vrms (8.7dBu) max.
- Headphone : impedance
- 13 Ohms min.
- Headphone output: 57mW max. per channel (THD >1%, 16 Ohm, 1kHz)
- Channel separation: -105dB
- THD <0.01% typical
- Dynamic range: 110dB (A-weighted)
- Output level: -86dB to +12dB (adjustable + mute)
- Auto power off: 10min with no connection
- Dimensions : transmitter : 140 x 97 x 53mm
- Weight : transmitter: 525g
- Dimensions : receiver: 47 x 71 x 22mm
- Weight : receiver 51g
