Features: UHF Wireless Microphone System: The system includes dual headset microphone and one receiver, featuring 650MHz-690MHz UHF wireless transmission, stable connection and low distortion ensure high quality vocal sound transmission. Condenser Handheld Microphone: Portable handheld microphone features dynamic pickup, total 23.5cm/9.25inch length makes it comfortable to hold, 2pcs AA batteries(Not included) powered for more portable use. Receiver with 3.5mm Plug: The receiver is powered by built-in 3.7V/450mAh battery, recharged with USB cable. 3.5mm plug enables wide application with smartphone, computer and camera, adapter cable might be needed for camera connection. Comes with 6.35mm Adapter: The 6.35mm included in the package is for wider receiver application on devices like music mixer, digital controller and speaker, more convenient to use. Wide Application: The headset microphone system can be widely applicable for video recording, broadcast, interview, online teaching, gathering and more occasions, truly portable wireless connection.