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 occasionsAutomatic noise reduction, reverb, monitoring, external playback, mute function, and can charge your phone while streaming2.4G wireless pairing, automatic connection upon startup, easy operationType-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 MicInput Voltage: 5VMicrophone Battery: 200mAhReceiver Battery: 200mAhBattery Life: 12 hoursSignal-to-Noise Ratio: 64dBmTransmission Delay: 30msSensitivity: -42dBFrequency Response: 20-20KHzTransmission Distance: 15-30 meters without obstacles