... Wireless Microphone, Professional Microphone, Mic, Wireless Mic, PA Mic Wireless Microphone, Karaoke Wireless Microphone, UHF Wireless Microphone, Professional Microphone, Mic, Wireless ... diversity receiver * Twice mixer superheterodune circuit for high sensitivity * Excellent SAW filter for RF ... for microphone * Up to 300 meter operation distance in perfect environmentSPECIFICATIONFrequency range730~ ...