How to Use: 1. One end of the Type C interface is connected to the mobile phone interface, the mobile phone is successfully connected, the indicator light flashes, the connection with the microphone transmitter is successful, and the indicator light is always on 2. Press and hold the power button of the microphone for 3 seconds, the indicator light will flash, and it will light up after pairing with the receiver, that is, the connection is successful 3. The indicator light of the receiving end is always on, and the mobile phone can use the microphone to pick up the camera, recorder, live video and other APPs Specification: Item Type: Wireless Lavalier Microphone Material: ABS Model: K9 Frequency Range: Bluetooth Frequency Response Range: 20-200KHz Microphone Built in Lithium Battery Capacity: 2 x 60mAh (built in) Transmission Distance: 20m / 66ft Transmission Delay: 30MS Sensitivity: -42dB Microphone: Silicon Mic SNR: 64dBm Use Time: About 4 Hours Package List: 2 x Receiver 1 x Transmitter 1 x Manual 1 x Charging Cable