Wireless mini rechargeable condenser microphone for audio recording with Type-C Transmitter that easily connects to your smartphone and Noise Cancelling technology, ideal for Vlogging, Podcast, live streaming, online teaching/meetings, interviews, professional videos, etc. Easy to use: no app required, just connect the receiver to the phone, and turn on the microphone. Small practical size with special Clip-on mounting clip. Wireless transmission for ease of use 2.4 GHz transmission Anti-interference technology Transmission range: up to 20m (without obstacles) Built-in rechargeable lithium battery 300mah Up to 8 hours of use The Transmitter is powered directly from your smartphone Receiver operating power consumption: 20ma Model name: SX66 Microphone signal/noise ratio: -72db Transmitter operating power consumption: 16ma Receiver charging current for mobile phones: 1A-1.5A Radio sensitivity: -38db Frequency response: 20Hz-20KHz