4ch 1000 watt all waterproof Bluetooth motorcycle atv marine audio system (Black) All waterproof motorcycle marine stereo system. Loaded with features All water resistant design, can be dropped into water for as long as 3 hours. New-style integrated waterproof joints. Built-in Bluetooth, FM and RCA audio input Hands-free call pickup Wired remote control With external antenna 4 stereo channels 1000 Watts max output Amp Specs