Specification:
Model Number:SUN-WCM-E300 Charging current and voltage: O.5A5V
Charging time: 1.5 hours
Working hours: 4 hours
Connection mode: automatic connection upon power on
Transmission distance:10-15 meters
Frequency response range: 16KHz
Recording sound mode: omnidirectional
Power supply: Built-in 140MAH polymer battery
Size:21mm*17mm*55mm
Charging time: 1hour