YESIDO KR17 2 in 1 Wireless Lavalier Microphone Type-C Receiver with Charging Box 1. 360 degrees omnidirectional pickup, providing high-fidelity sound effect 2. The microphone has a clip, which can be quickly fastened to the collar or chest of clothes for easy recording, which is convenient for hand-held camera interviews 3. No need for any APP. No messy cables and poor noise reduction, just plug the receiver into your phone, turn on the wireless microphone, and it will automatically match up immediately 4. Widely used for laptops and cell phones with a Type-C port 5. Ideal for video recording, Live stream, interviews, presentations, virtual conferences, etc Specifications: 1. Microphone type: Digital silicon microphone 2. Antenna type: Ceramic antenna 3. Sampling rate: 32KHz 4. Transmission frequency: 2.4GHz 5. Frequency response range: 20Hz-20KHz 6. Transmission time: 20ms 7. Battery capacity: 70mAh (button battery) 8. Charging time: about 80 minutes 9. Working hours: 8 hours 10. Transmission distance: 50 meters (barrier free) 11. Charging box battery capacity: 600mAh Packaging list: 2 x Lavalier microphone 1 x Type-C receiver 1 x User manual 1 x Type-C charging cable 1 x Charging box