This product is an intelligent wireless microphone that offers 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. Equipped with a 3.5mm connector, and can also be used with an optional OTG cable to connect to smartphones Automatic noise reduction, reverb, monitoring, and mute functions. 2.4G wireless pairing, automatically connects upon startup, easy to operate Compatible with smartphones, computers, tablets, speakers, amplifiers, cameras, and other devices Specifications: Microphone Type: Digital Mic Input Voltage: 5V Microphone Battery Capacity: 60mAh Receiver Battery Capacity: 90mAh Battery Life: 5-6 hours Signal-to-Noise Ratio: 64dBm with adaptive noise reduction Transmission Delay: 30ms Sensitivity: -42dB Frequency Response: 20-20KHz Transmission Distance: 15-30 meters without obstacles