PLL Synthesized, pre-set 100 selectable frequencies. Antenna diversity guarantee maximum range up to 80 meters. Pre-set 100 (10x10) frequency selectable, IR synchronization. LCD display shows the RF level, AF level, channel and frequency. Special designed for electric guitar, bass, keyboard, violin and all. Comprehensive performance: Frequency Range 740-770MHz, Modulation Mode FM, Dynamic Range >100dB, Frequency Response 40Hz-17KHz±3dB, Total Harmonic Distortion <0.5% at 1KHz, Signal/Noise Ratio ≥105dB. Receiver: Receive Sensitivity -110dBm (sinad ≥30dB), Signal/Noise Ratio >105dB, Power Supply DC12V/500mA, Audio Output 1 XLR socket, 1 6.35mm jack socket. Transmitter: RF Power 10mW, Frequency Deviation ±48KHz, Antenna 1/4 wave Length wire type, Battery Voltage 1.5V (1x1.5V AA Battery, battery not included), Power Consumption 10 hours. Standard Package: Receiver, Microphone, Audio cable, Power Adapter, User Manual, Aluminium box.