Max Mk2 Professional Wireless Microphone Uhf

Power: 10-30mw modulation mode: dsp most major system: +25khz .digital with screen frequency display. high harmonic: waves 40db benchmark: below .Distance areacoverage 120 meters plus .Uhf twin channel frequency .Black colour use the power supply voltage: 3v battery continuous use of time: about 12 to 16 hours