MARINE GRADE DESIGN: With IPX5 water resistance technology and UV coating material, the waterproof boat stereo makes sure you can use the marine headunit in wet and saltwater environment without failure, great for boats, yachts, sauna rooms, ice house, bathrooms and more. BLUETOOTH AUDIO STREAMING: The marine radio system has a built-in bluetooth with 30 feet range for wireless music streaming. Once it is paired for the first time, the round marine stereo picks up bluetooth automatically and gets the music playing from your smartphone, tablet, iPad or other smart devices within a few seconds. Note: The bluetooth marine radio does not have CD player. You can set the basic EQ (Bass/Treble/Balance/Fader/Loud) to enjoy high quality sound. MULTIPLE CONNECTION: The marine dashboard stereo supports 32GB flash drive with hundreds of albums for digital music play and AUX-in for streaming audio from additional external devices. Features 3 pairs of RCA Pre-outs to accommodate fully applied systems easily with front, rear, and sub high quality outputs. The max power output with 50w x4 channels for the speakers. ADDITION FOR FACTORY INSTALLED: The gauge marine media receiver is durable, compact and take up little space on your console. It has user-friendly interface for navigate and 2.5 LCD digital display with easy-to-read in sunny conditions. The marine stereo comes with hardware and labeled wires for ease mounting. Cutout Size: 2.75″/70mm Mounting Depth: 2.84″/72mm, fits perfectly to golf carts, UTV, SUV, ATV, RV, RZR, harvesters cars, trucks, motorbikes, marine watercrafts and powersport vehicles. All our products are brand new and sealed. We take our reputation seriously.