Features: Wireless mic system with 1 dual-channel receiver and 2 handheld microphones. UHF design(520-930MHz) with 2 antennas for signal receiving. 200 selectable frequencies on each channel, more choices. Automatic frequency scanning to find and set the best available channel. Automatic transmitter setup, the receiver and microphones can synchronize easily. Two XLR balanced and one 1/4 audio mix output interfaces. Supports the volume of mics adjusting separately. Up to 100m effective operating range in open area.