For DJI Mic 2 3 Mini COMPATIBLE Mobile Phone Receiver 1. Connects to cell phone via USB-C connector or Mic series cell phone receiver adapter (USB-C to 8 Pin), plug and play 2. Supports up to two transmitters and one receiver, can be connected to two Mic Mini transmitters, or a combination of Mic Mini, Mic 2 and Mic 3 transmitters 3. Equipped with noise reduction gear switch, support fast switching noise reduction mode, provide off, weak gear, strong gear three gear options 4. Warm tips: not suitable for DJI Mic 5. Note: only the receiver, does not contain other Technical Parameters : 1. Wireless mode: GFSK 2Mbps 2. Wquivalent omni-directional radiation power consumption (EIRP): 20 dBm or less 3. Operating frequency: 2.400 GHz to 2.4835 GHz 4. Bluetooth Protocol: Bluetooth 5.3 5. Bluetooth transmit power (EIRP): 20 dBm or less 6. Bluetooth operating frequency: 2.400 GHz to 2.4835 GHz 7. Charging ambient temperature: 5 to 45 degrees Celsius 8. Operating ambient temperature: -10 to 45 degrees Celsius 9. Adaptable products: supports mixed Mic 2, Mic 3, Mic Mini transmitters. 10. Size: about 39.26mm in length, 27.26mm in width and 8.97mm in height 11. Weight: about 6.5g