This product is an intelligent wireless microphone that provides professional-grade recording output. It's plug-and-play, no app required. It serves various purposes: suitable for online streaming, video Vlog shooting, program interviews, interview recordings, video teaching, and more. Achieve long-distance, high-definition audio recording for online streaming, video Vlog shooting, interview recordings, video teaching, and other occasions Automatic noise reduction, reverb, monitoring, external playback, mute function, and can charge your phone while streaming 2.4G wireless pairing, automatic connection upon startup, easy operation Type-C interface: compatible with most laptops, desktop computers, smartphones, and other common Android interface devices (Android phones need to support OTG function; for OPPO/for VIVO/for IQOO/forRealme brand phones, you need to search for "OTG" in settings, and enable OTG power to use it normally) Specifications: Mic Type: Digital Condenser Mic Input Voltage: 5V Microphone Battery: 200mAh Receiver Battery: 200mAh Battery Life: 12 hours Signal-to-Noise Ratio: 64dBm Transmission Delay: 30ms Sensitivity: -42dB Frequency Response: 20-20KHz Transmission Distance: 15-30 meters without obstacles