... Wireless microphone 1 Wireless models 2 UHF microphone 3 Good quality Professional Wireless Microphone Feature1. Using advanced electro-acoustic technology combined modern electro-acoustic materials makes microphone ... for KTV rooms, Home Theater Karaok, Conference rooms, Schools, stage performance occasion, etc ... Frequency10.7MHz Radio Interface BNC/50Ω System Sensitivity 12db μV (800dBS/N) ...