Experience audio excellence like never before with our Supersonic SC-920UHF UHF Dual Fixed Channel Wireless Microphone Systems! This powerhouse of technology offers a wide frequency range, LED indicators, and a remarkable 4-hour wireless operation on included AA batteries. Features and Specifications: Transmitter - LED Status Signal Indicator - Frequency Range: 470-580 MHz - Frequency Response: 50Hz- 16KHz - Current Consumption: 130 mA - S/N Ratio: 91 dB - Bandwidth: 600KHz - Transmitter Power: 8dBm - Data Rate: 204.8Kbps - Two Handheld Dynamic Aluminum Transmitter Microphones - Up to 4 Hours of Wireless Operation on (4) AA batteries (Alkaline Batteries Included) Features and Specifications: Receiver - LED Status Signal Indicator - Dual Independent Antenna - Frequency Range: 470-580 MHz - Frequency Response: 50Hz- 16KHz - Sensitivity: -90dB - T.H.D.: <0.5% - S/N Ratio: 37µ V - Mix Output: 300mV - Balance Output: 150 mV - 2 XLR Output - 1/4 Mixed Output - Power Supply: 12-15 V