FEATURES UHF 600-928MHz frequency range True diversity for maximun range and dropout protection PLL Synthesized circuit, pre-set 100 selectable frequencies IR sync downloading the frequency from receiver LCD display shows status of frequency, AF and RF signal etc 15 systems can work simultaneously without interfernce EIA standard 1/2U rack-mountable metal chassis Up to 500 feet(150m) line-of-sight operating range Designed for lavalier,heaset and all wired instruemnt mics applications SPECIFICATION Comprehensive Performance: Frequency Range: 600-928MHz Modulation Mode: FM Dynamic Range: >100dB Frequency Response: 60Hz-17KHz3dB Total Harmonic Distortion: <0.5% at 1KHz Signal/Noise Ratio: ?105dB Receiver: Frequency Range: 600-928MHz Receive Sensitivity: -110dBm (sinad ?30dB) Signal/Noise Ratio: >105dB Power Supply: DC12V-18V / 500mA Dimensions:210*170*44mm Audio Output: 1*XLR socket, 1*6.3mm jack socket Transmitter: Frequency Range:740-765MHz RF Power: 10mW Microphone Type: Dynamic Directivity: Cardioid Battery Voltage: 3V (2x1.5V AA Battery) Power Consumption: 8 hours, battery-dependent