The innovative Lavalier Microphone is different from others, which includes transmitter and receiver, they will automatically wireless connect. Just plug the transmitter into the devices (Type-C port) and directly. Intelligent noise reduction and clear sound reception. It can be used not only for indoor live broadcasting, but also for outdoor live broadcasting or video recording. Active noise reduction sound quality is clearer, built-in DSP noise reduction 5.1 chip, strong anti-interference ability, effective identification of the sound. It can be used in many occasions, such as online live broadcast, online classroom teaching, interview recording, short video recording, etc. Long battery life can be used continuously for 10 hours to meet your various needs. Product name: wireless lavalier microphone Interface:Type-C Charging current: 5V_100MAh Charging time: about 1 hour Battery capacity: 90Mah Working time: 10 hours Connection mode: automatic connection after power-on Transmission distance: 20 meters How to use: Step 1: Connect the Type-c interface of the receiving end to the mobile phone interface, and the blue light flashes. : Click the power button of the microphone, the indicator light flashes blue. Step 3: The blue light of the receiver is on and the blue light of the transmitter is on, indicating that the connection is successful. You can use various applications, such as mobile phone video live broadcast, video call, and voice chat. Indicator status: Power on: Click the button-the blue light flashes Turn off: Long press the button for 3 seconds-the blue light is on for 1 second and the light is off. Do not use automatic shutdown within three minutes. Charging: The red light is always on, and the light is off when it is full. Search formatches: flashing blue light Pairing is successful: the blue light is always on Low battery alarm: flashing red Colour:black Material:ABS Package Contents: 1 x Wireless Lavalier Microphone Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.