Whisper wireless radio tour guide system earphone receiver 813R for training interpreting conference tour visitors

Function：

813R works as radio / audio receiver. 

Paired with 813T (transmmitter).

Specifications:

①/② : Change channel

③/④ : Change volume

Parameters:

Carrier Frequency: UHF 600MHz-900MHz (customized); channel numbers: 18 - 200 channels;

Working time: 20 hours; battery: lithium polymer battery;

Charging method: charging base and USB cable.

Working distance: >150m; machine size: 86.5*48*18mm; weight: 50g;

Accessories: earphone and lanyard.