Bluetooth: Play and control music through your smartphone or MP3 player as well as apps like Spotify , wirelessly
Waterproof & Weatherproof - The GR307 waterproof marine bluetooth stereo receiver has been outfitted with IP66 Water Resistant, the latest weatherproofing techniques such as front panel UV coating, PC board with conformal coating
Big Power: This Boat Marine Radio built-in 4 X 72 Watt peak high powered amplifier (28*4RMS)
Master piece heat dissipation: Big Heat Sink to Drive Max 4 x 6.5" Speakers, No Worries for Over-Heating
Media playback:Bluetooth, play music via the USB port or tune into the AM / FM radio stations for up to date music/news/sports and more. The GR307 does not have a CD or DVD mechanism. USB Charging available