AMPLIFY YOUR RIDE: Pyle’s 900W dual marine grade off-road speaker system is what you need to listen to high-quality audio on your boat, ATV, UTV, quad, Jeep or other vehicles! Includes (2) 4 inch active & passive two-way off-road speaker system BLUETOOTH-COMPATIBLE: The pair of Pro Audio PowerSport speakers are compatible w/ bluetooth for wireless audio streaming & works w/ devices like iPhone, Android mobile phone or iPad. The BT module is built into the amplifier of the active speaker ACTIVE + PASSIVE SYSTEM: Wake board speaker kit features AUX input & 30oz magnet structure that powers (2) 1” neodymium dome tweeters, (2) 4” polypropylene cones w/ butyl rubber surround, 1” KSV mid-woofer voice coil for full range sound reproduction WATERPROOF CONSTRUCTION: The speakers feature marine grade IP-X5 waterproof construction w/ weatherproof and water-resistant housing perfect for extreme water sports use. It has a sleek design and durable machine molded speaker cabinet housing UNIVERSAL MOUNTING: The speakers are protectively stored in a heavy-duty molded cabinet w/ butyl rubber surround. Designed to be mounted on a support bar, frame, roll-bar / roll-cage. Includes connection wires, wire butt connectors, and mounting pads