Specifications:
Frequency range: 2.4GHz
Transmitter working current: 11~12mA
Start-up current: 10~11mA
Working current of receiving end: 20~21mA
Power-on current at the receiving end: 8~9mA
Shutdown current: 2~3uA
Working temperature: -10~45℃
Charging input voltage: DC4.8~5.4v
Working time: about 6H
Charging interface: TYPE-C
Charging time: about 90min
Charging current: about 60mA
Battery capacity: battery 80mAh
Full battery voltage: 4.1~4.25V
Transmission distance: barrier-free distance 20m/ human obstacle distance 7m
Left and right SNR: 64 dBm
Transmission delay: 30MS
Sensitivity (microphone): -42dB
Type of microphone: MEMS microphone