This bluetooth marine radio is made to resist the marine environment. IPX5 marine grade construction and UV coatings let you don't need to worry about humidity and saltwater exposure. This waterproof boat stereo is standard tachometer gauge design. Bluetooth A2DP Music Streaming: This MP3 boat audio lets you enjoy your streaming music via Bluetooth 5.0 technology. You can wirelessly connect all your favorite devices like smartphone, , tablet, etc. to the marine bluetooth receiver and play your / music with the stable bluetooth signal. Power-off Memory is supported, so the unit can automatically enter track played before last power outage. Lossless Music Experience: This marine gauge stereo supports subwoofer audio output and 4x50W amplifier audio output, lets you immerse in rock music. What's more, freely control /treble/balance/fader and custom preset EQ in audio lets you easily find your music style and enjoy lossless music. Power supply:DC 12V Waterproof level:IPX5 Backlit LCD display Source Type:FM,AM,Bluetooth Enabled Marine Radio. Input Types:Bluetooth, USB,AUX. Outputs:1 pair Pre-Amp Out,One Way Input Support subwoofer audio output. ID3 Tag Song Readout and Power-off Memory is supported. Perfect for:Car,motorcycles,yacht,fishing boats, cuddy cabins, ski boats, the unit is also perfect for spa pools, quad bikes, golf carts,UTV,ATV and RV. Tips:The picture is a high-definition rendering. The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Plastic+Metal Package Contents: 1 * Bluetooth Stereo Player 1 * Protective cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.