Features: Wireless microphone system with 2 handheld microphones and 1 compact size receiver. Using VHF band frequency 211.0-213.5MHz to avoid interface. Adopts SMT technology and multiple noise control circuit to ensure high performance and low distortion. The receiver with 2 control knobs for adjusting the volume of the microphone separately, easy and flexible to use. Max. effective transmission range in open area is about 60 meters, suitable for public speech, ballroom karaoke, home entertainment, classroom teaching, business meeting, etc.