FeaturesReceiver: UHF Quad Multi-ChannelOperates on 863.30 / 864.30 / 863.80 / 864.80MHx frequencies4 x wireless dynamic cardioid microphones2 x 1.5V AA batteries per microphone includedWorking distance up to 60mIncludes carry caseThe Kam Quartet ECO Wireless Microphone System with 4 Mics is a 4 channel professional UHF wireless microphone system with 4 dynamic cardioid hand-held microphones and a UHF Multi-channel receiver. The roady-ready metal cased receiver features enhanced muting, high signal to noise ratio and almost zero noise output when on standby. Individual volume controls, RF / AF signal indicators are on the front and both balanced and unbalanced audio outputs on the rear with twin antenna. Four durable colour coded handheld wireless microphones with On/Of switches offer up to 60m of uninterrupted working distance and easily pair with the receiver.