Features: Wireless UHF System: The UHF system includes handheld microphone and one receiver, featuring 16 channels and long distance operation, with LED screen to display transmitter parameters. Dynamic Handheld Microphones: Portable handheld microphone features dynamic pickup, total 26.5cm/10.4inch length makes it comfortable to hold, widely suitable for broadcast, interview, church and more. 6.35mm Plug Receiver: The receiver with 6.35mm plug can be applicable for speaker, audio mixer and DVD player, 3.5mm audio adapter(Not included) is necessary for camera connection. Battery Powered: The handheld microphone is powered with 2pcs AA batteries, the receiver is powered by a 18650 battery and can be recharged with USB cable included.(Batteries Not Included) Wide Application: The headset microphone system can be widely applicable for video recording, broadcast, interview, online teaching and more occasions. Specifications: Model: AD-231 Transmission Range: 30-50 meters –Technical