Introduction: The series of dual-frequency-locked four-channel wireless conference microphone. Products with less noise interference UHF double-locked circuit design, the perfect anti-noise interference characteristics, any similar systems are unmatched. Full metal material standard chassis, 1U metal panel configuration four-channel receiver, assembled LCD display screen, show the working channel, the operating frequency. Fully, quickly and easily understand all the action message receiver. The hosts were balanced audio output jack, and the mixed unbalanced outputs, fully adapt to a variety of connectivity needs.