Model: bl-1031 uhf dual-channel wireless microphone system Boly bl-1031 wireless microphone system delivers superior sound quality and professional features. It is designed for a wide range professional application with 200 selectable channels. For easy use with multiple systems, no confusing frequency groups. It can be placed next to speakers with no feedback or distortion. It is perfect for professional use at any events. Selling points: 1. Uhf 200 channels 2. Customerized uhf wireless microphone (decided by client) Solution 1: with wireless handheld microphone Solution 2: with body pack transmitter and headset microphone / lapel microphone 3. Frequency: 780-840mhz, transmitting distance: 120m, transmitter battery 8 hour 4. Adjustable transmitting range, from 20m to 120m. 5. Big backit lcd display 6. The handheld transmitter (microphone) have mute and lock function. Features: Uhf 670~840 mhz quartz control phase locked. 200 channels Hight-fidelity cartridge module. Super anti-jamming circuit design. Super-low background noise. High effciency batteries consumption design. Scope of application: ktv, school, hall, family, party.