Introduction

The B7-1 is a high‑performance guide system operating in the 2.4GHz band. It consists of a B7‑1 Transmitter and a B7‑1 Receiver (over‑ear headset). The transmitter supports an external microphone, noise reduction, and Bluetooth input, while the receiver features a lightweight over‑ear design for comfortable, secure wearing. As a complete portable wireless tour guide system, it is ideal for guided tours, simultaneous interpretation, on‑site training, industrial visits, and any scenario that requires clear, long‑duration communication.

Features

• 2.4GHz FHSS technology – strong anti‑interference and transmission range up to 250 metres.

• Over‑ear receiver – weighs only about 21g, no pressure even after hours of use.

• Ultra‑long battery life – the receiver is equipped with a 400mAh battery providing about 30 hours of continuous operation.

• Dual charging methods – the receiver supports both a charging cradle and USB Type‑C, fully charged in about 3 hours.

• Full‑function transmitter – adjustable channels, one‑key mute, remote shutdown, noise reduction, and Bluetooth input.

• Clear LCD display – shows battery level, channel, mute status, Bluetooth status and key lock on the transmitter.

B7‑1 Transmitter

Appearance & Interfaces

• Three‑position switch: ON / LOCK / OFF (LOCK only locks the channel adjustment buttons, not the mute function).

• Charging indicator: red = charging, blue = fully charged.

• 3.5mm microphone jack – supports an external lapel or headset microphone.

• Type‑C charging port + charging cradle contacts.

Button Functions

LCD Icons

B7‑1 Receiver (Over‑ear Headset)

Design & Wearing

• Over‑ear design, fits both left and right ears.

• Compact size: approx. 40.8mm × 26.8mm × 12.6mm (without ear hook).

• Weight only about 21g (including ear hook) – you barely feel it.

Technical Specifications

How to Use

• Power on/off – Placing the receiver into the charging cradle or a cradle charger turns it off automatically; take it out and manually power on (see the device for exact operation).

• Pairing – For first use or after changing channels, pair with the transmitter (long press the pairing button on the transmitter; the receiver will search automatically).

• Volume control – The receiver has volume +/‑ buttons on the body (or adjust via the transmitter).

• Low battery alert – Voice or LED reminder when battery is low.

Note: The receiver is a dedicated over‑ear headset. It does not connect directly to Bluetooth – all audio is received from the transmitter via 2.4GHz.

Application Scenarios

Why Choose the B7‑1?

• Ultra‑light receiver – 21g over‑ear design, comfortable for all‑day use.

• 30‑hour battery – covers multiple tours without frequent recharging.

• 2.4G digital transmission – anti‑interference, low latency, long range.

• Full‑featured transmitter – adjustable channels, noise reduction, Bluetooth input, one‑key remote shutdown.

• Flexible charging – cradle + Type‑C.

As a receiver tour guide system, the B7‑1’s over‑ear receiver delivers outstanding comfort and clarity, while the whole set works as a complete portable wireless tour guide system for any professional guiding environment.

Technical Summary

B7‑1 Wireless Tour Guide System – Powerful transmitter meets lightweight, long‑lasting receiver. Professional, stable, and comfortable wireless audio for team guiding.