UHF frequency band features interference-free reception • Long operating range up to 50 meters in open area • Transmitter features excellent audio companding circuit and high quality cardioid capsule for best sound quality and maximum feedback rejection • Powered by 2pcs of 1.5V batteries for convenient use • Advanced pilot frequency lock function can better avoid interference and eliminate the on/off impulsive noise • Balanced(XLR) and unbalanced(6.3mm)output for convenient connection with various audio equipment • Receiver adopts quartz frequency multiplication fixed frequencies for simple and convenient use