Pyle-Pro Instrument Dynamic Microphone (PDWM4400) QUAD FREQUENCY CHANNEL: This portable VHF wireless microphone system by Pyle Pro has 4 channel design with broad frequency range for cordless singing to karaoke music and mobility for energetic on stage performance INDEPENDENT MIC VOLUME CONTROL: The unit has an independent adjustable volume control for each channel so you can balance the vocals as desired. Perfect for professional engagements, conference, PA, DJ party MULTIPLE OUTPUT JACK: The rack mountable receiver features an individual 1/4'', 1/4" mixed, and XLR output jacks to hook up your sound mixer, stereo, speaker and other devices. It also has a dual antenna, RF indicators, AF level meters SUPER COMPACT DESIGN: The set is made in a compact and lightweight design for a handsfree performance and you can barely even notice that the mic is there. It also features a clip on lav mic so you can easily clip it to your collar, tie or pocket WHAT'S IN THE BOX: The package includes 4 headset and 4 lavalier lapel Mic, 4 body pack transmitter, audio cable, rack mount bracket and a receiver base. The device can be used indoor & outdoor, school classroom, church or at home for personal use