Receiver: Power supply: DC12V~17V/600MA - Adjustable frequency For adding more Mic"s - Independent volume control for each microphone - Microphone: RF Output Power: 90dB - On/off switch for simple operation - RF Rejection: >40dB * Image Rejection: >80dB - Audio Output Level: 800mV(600O) - Signal-to-Noise: >90 dB - Ergonomic design fits the hand perfectly - Current Consumption: <100mA * Frequency Range: 614-698MHz - Audio Frequency Response: 75-14500HZ - Rack mountable UHF system is perfect for large Events - Maximum Deviation Range: 60 KHz (Max) - Operate Range: 200 - 260 ft. * Current Consumption:<400mA - LCD display with relevant information - Foldable antennas - Frequency Stability: ±0.005% - Battery: 1.5V*2 AA