PYLE-PRO Instrument Dynamic Microphone, 2 Mic System (PDWM3400) 8 selectable channel: This black hands-free wireless microphone system by Pyle Pro has 8 selectable frequency channels and gives you 160 ft Of operation range for cordless singing to karaoke music and mobility for energetic on stage performances Uhf band: the unit features UHF signal audio transmission for an unsurpassed performance with operation range of up to 160 ft for clear, noise and distortion free, crisp vocals and excellent sound reproduction unlike other low grade VHF units Independent mic volume control: each Lav mic has its own volume control so you can balance the vocals as desired for a karaoke experience that both kids and adults will enjoy. Perfect for professional engagements, conference, DJ party Dual output jack: The receiver base features a balanced XLR output jack to hook up your sound mixer/ stereo or speaker and an aux 1/4" Phone plug for other external devices. It also has a digital frequency display, antenna, and indicator lights What's in the box: The package includes a receiver base, TRS  cable, power adapter, 2 body-pack transmitter, 2 headset and 2 lavalier lapel mic. The device can be used outdoor and indoor like a school classroom, church or at home for personal use