>> Feature The freePORT Vocal Set includes a handheld transmitter with a cardioid dynamic capsule and a diversity receiver. The transmitter is exceptionally comfortable to hold and provides a lively and assertive sound. - Four switchable UHF frequencies for interference-free reception - Absolutely safe transmission - Diversity Technology for highest reception quality - Adjustable Squelch for undisturbed operation - Receivers built in robust metal housing - Dynamic processor for crystal clear sound >> Specification - Operating Time : 10 hours - Pick Up Pattern : Cardioid - Frequency Response : 80 - 16,000 Hz - Supply Current : 120V AC - Dimensions : 1.4 x 8.4 x 4 in (receiver), 11.25 in length x 1.2 - 2 in diameter (transmitter) - Weight : 1.25 lb (recevier), 7.4 oz w/o battery (transmitter) - Transducer Principle : Dynamic - Power Supply : AC adaptor supplied, requires 9V battery for transmitter - Switchable Frequencies : 4 - Thd : <1% - Rf Output Power : 10 mW - Signal To Noise Ratio : 95 dB(A)