UHF dual channel wireless receiver can receive two wireless microphones or two lapel microphone or a handheld microphone and a lapel microphone, and parallel to control the microphone volume. Quartz lock with a fixed frequency UHF band, with the latest "noise detection" mute control, it can completely eliminate the noise generated by loud noise interference. Dual-channel receiver audio output is a mixture of two-channel output, and separate balanced output can meet the input characteristics of a variety of Amplifiers. Metal chassis and SMT circuit, there are 30 groups frequencies between 760-920 MHz for choice . Product Features: Frequency Range: 740-920MHZ Modulation System: quartzcrystal control Rf stability: 0.005%(-10-50) Frequency Resopone :50Hz-18KHz3dB RF Power:10mW Noise Ratio:>100dB T.H.D: 0.5%.