4 Channel UHF Handheld Wireless Microphone System

4 Channel UHF Wireless Microphone System UHF Fixed Frequency: 531-559 MHz One 1/4 in Mixed Output and Four XLR Outputs Normal Deviation: ±22 kHz S/N Ratio: <120dB Frequency Response: 50 Hz-15 kHz Stability: ±0.006% Sensitivity: >80dB Cartridge: Dynamic Power ON/OFF Switch and ON/MUTE Switch RF Output: <10mW Maximum deviation: ±80kHz Battery: 1.5v Battery Package includes: 1 x 4 Channel UHF Receiver, 4 x Handheld Microphones, 4 x Telescoping Antennas, 1 x 1/4 in Audio Cable, 1 x Power Cord (110v)