•Small body,lightweight,free to wear,simple style,black appearance,refined and atmospheric •Built-in rechargeable battery,ultra-long endurance without worry •Suitable for short video recording,live selling,outdoor interviews,online teaching,easy response in various noisy environments,shooting •Plug and play auto pair. Easy to operate Automatic connection at startup •Live/video recording,stable signal,clear reception,synchronous and accurate transmission of sound and images Specifications: •Frequency range 2.4GHz •Transmitter: •Operating current: 11~12mA •Power on current: 10~11mA •Receiver: •Operating current: 20~21mA •Receiver: •Power on current: 8~9mA •Shutdown current: 2~3uA •Operating temperature: -10~45 degrees Celsius •Charging input voltage: DC4.8~5.4v •Working time: about 6H •Charging interface: TYPE-C •Charging time: approx. 90min •Charging current: about 60mA •Battery capacity: 60mAh •Battery full voltage: 4.1~4.25V •Transmission distance: 20m without barrier,about 7m from human barriers •Signal-to-noise ratio: 64 dBm •Transmission delay: 18MS •Sensitivity (microphone): -42dB •Microphone: Silicon microphone •Antenna Type: Ceramic Antenna •Frequency response range: 20-20KHZ Package included: •2 x Microphone •1 x Receiver •1 x Charging Cable •1 x English Manual