The BIG-QUAD-HHBB Bigfoot Quad Package comes with the BIG2-XU4 sound system with built-in bluetooth AIR wireless transmitter & dual wireless mic receiver. This unit also inclues 2 WH-LINK wireless handheld mics and 2 WB-LINK Bodypack Transmitters with 2 lapel and 2 headset mics. The Bigfoot BIG2-XU4's built-in Bluetooth receiver streams music from a smartphone, laptop or tablet. Non Bluetooth devices, wired mics and more get connected with the two XLR combo jacks, 1/4 inch line input and a 3.5mm stereo mini jack. The unit features 2 dual wireless mic receivers that allow you to connect up to 4 wireless mics, integrated mixer functions with volume control, 2 band EQ and a balanced 1/4 inch out for routing to additional PA's.