Features 1. Adopts 2.4G frequency band, features stable signal transmission and 50m effective range, not easy to be interfered, ideal for film and vlog recording, live streaming, interview, etc. 2. Transmitters and receiver have been paired, just turn them on, then the transmitter and receiver will automatically link to the frequency within 3s, plug and play, without tedious debugging. 3. The transmitter has built-in microphone and supports omnidirectional pickup with clearer sound, also comes with an external lapel microphone, which allows users to record more flexibly. 4. The transmitter and receiver both have built-in rechargeable battery that can be charged via the provided USB cables, and working time is up to 8H after fully charging. 5. The receiver has real-time return monitoring interface, you can connect headphones to monitor the recording effect; backside clip design, can be fixed on collar easily and quickly. Specification 1. Material: ABS 2. Applicable objects: home, computer, recording, phone, camera, camcorder 3. Signal transmission: 2.4GHz 4. Frequency response: 2.4 - 2.4835 KHZ 5. Charging time: about 2 Hours 6. Operating distance: 30m 7. Output method: 3.5mm Output & Type-C Output 8. Working time: 8-10H 9. Product size: 4.8x3x2cm