2.4Ghz wireless microphone with USB Type C connector Simply connect the receiver to your Smartphone or Tablet, no program installation or cable connection is required. The transmitter and receiver will automatically pair after powering on with a single button The 2.4Ghz wireless smartphone microphone provides stable, smooth and anti-interference transmission up to 20m The wireless microphone system supports up to 5 hours working time, via USB charging, ideal for outdoor live streaming, interview, YouTube recording, online class, etc. Built-in professional noise reduction chip with strong anti-interference, the wireless microphone for cellphones and tablets can identify authentic voices and record them clearly even in noisy environment. It adopts a high-sensitivity microphone with a 360 ° picking pattern to pick up sound with rich detail. The receiver has an external power port, to be used when the device is discharged and you want to power the receiver via an external power supply (powerbank or charger) USB typeC charging cable for the microphone included Connections Power On / Off: Press the power button for 3 seconds Pairing: Automatic connection after power on Reset: Long press the power button on the transmitter for 8 seconds