Digitek 2 Unit Wireless Microphone & 1 Unit Receiver with Type C Compatible for Noise Cancellation Mic Suitable for Vlog YouTube Live Streaming Video Recording DWM-003 1. Sound Pickup: Avoid humidity 2. Transmitter Indicator Power on Red and blue lights flash. Charging the red lig h alternately, indicating transmitter and receiver are pairing. Working Status: the red light is always on, indicating the transmitter and the receiver are paired and working ht is on, while off when it is full 3.Type-C Charger : DC / 5V power input Port type: Type-C 4. Lavalier Click on clothes easily 5. Button Long press to turn On/Off the microphone (red and blue Short press to mute/unmute the microphone. Red and blue lights flash alternately, and the red light is always on after paired flash alternately when mute. Instructions of Receiver 1. Type-c Jack: Insert into the Type-C port of the mobile phone. 2. Receiver Indicator: Insert the receiver into a mobile phone, the red and blue lights will flash alternately, indicating receiver and transmitter are pairing. The red light is always on indicating the transmitter and receiver are paired and working. Specifications : Power: DC 5V/1A Radio Frequency: 2.4Ghz-2.44Ghz Receiver: Via USB-C (Via Mobile Device) Working Current: ≤11mA Standby Power Consumption: ≤ 55uA Response Frequency Range: 20HZ-20KHZ Sensitivity: 35dBm Signal-to-noise Ratio: ≥75dB Power Supply: Built-in-50mAh Li-poly battery for up to 4 Hours of operation. Charging via USB(AC adapter or Power Bank-not included) Button Description Long Press: Turn on/off Short Press: Mute/Unmute