Home / IEM 01 IEM 01 Technical Parameter Frequency Range UHF 620-950MHz Frequency Response 40Hz-18KHz Frequency Stability ±0.005% Modulation Mode Wide-band FM Modulation Range 25MHz Channels 100CH Working Distance 80M Channel Spacing 250KHz Transmitter Power Supply AC 100-240V, 50/60Hz DC Adaptor Output Power 13-15V, 1000mA Power Consumption 5W Modulation Mode FM Tunable Bandwidth 50MHz Frequency Interval 250KHz Maximum Deviation ±45KHz Harmonics Radiation <-55dBc Receiver (Bodypack) S/N Ratio >98dB P/N Ratio >80dB F/N Ratio >80dB Receive Sensitivity 5dBu Power Consumption 10mW Battery Voltage AA 1.5V x2 Battery Life 5 hours