The Galaxy Audio ECM Wireless Microphone System is an affordable, wireless UHF microphone system ideal for general speech applications, presentations, DJs, small performances and more. The system features the ECMR receiver with 16 user selectable channels and diversity reception. Infrared (IR) channel sync is possible between the receiver and transmitter. This system includes the HH52 handheld microphone/transmitter, with a dynamic element and cardioid polar pattern.