Sh300g Legend Shure Wireless Microphone

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