2.4G wireless connection, low delay, can pick up sound from all directions and reproduce it clearly; supported. Replacement for Android smartphone, plug and play, no APP needed, no need of BT connection, transmitter and receiver will automatically pair up, quick and convenient to use. Suitable for various occasions, such as live stream, interview , video , video conference, online teaching, and more, a good helper for anchors, reporters, short video maker, businessmen, teachers, and so on.