high quality These cordless microphones for singing feature audio transmission for unsurpassed performance w/ high signal over noise ratio for clear, distortion-free, crisp vocal & excellent sound reproduction unlike low-grade VHF unit160' FT OPERATION RANGE: The wireless microphone set features Up to 160'+ ft. operation range & lets you move w/ ease without those annoying cords. Used for karaoke, classroom, office/business applications. Perfect for public audio & studio use160' FT OPERATION RANGE The wireless microphone set features Up to 160'+ ft. operation range & lets you move w/ ease without those annoying cords. Used for karaoke, classroom, office/business applications. Perfect for public audio & studio useSELECTABLE FREQUENCY RANGE: This wireless professional microphone features digital display w/ 8 channel selectable mic frequency range w/ low distortion. Enjoy cordless singing to karaoke music & mobility for energetic on-stage performance NARROW BAND: These cordless microphones for singing feature audio transmission for unsurpassed performance w/ high signal over noise ratio for clear, distortion-free, crisp vocal & excellent sound reproduction unlike low-grade VHF unitAUDIO RECEIVER: wireless microphone system includes a plug-in audio adapter receiver with (6.3mm) jack. Features integrated antenna for extended wireless range. It directly connects to amplifier, stereos, audio processors, and DJ mixerEASY TO OPERATE: This microphone system is battery-operated & easy to control. Features independent & adjustable channel volume control, convenient power ON/OFF switch, LED indicator lights, & LCD digital display screen for frequency read-out