• POWER: The marine stereo receiver Operates at 4 x 25 watts. Solid aluminum chassis and IP-66 salt fog rating for durability; Round Speaker Maximum Power Handling is 120 watts a Pair, Frequency response 80 - 20,000Hz , Impedance 4 ohms.
• VOICE COIL: Our voice coils are able to withstand high temperatures yet maintain its strength and fatigue properties. This gives our speakers the advantage of longer play times with lower weights.
• WATER-RESISTANT: The marine stereo receiver with Bluetooth features marine grade construction w/ IP-66 waterproof rating. Resists water splashes and rain, makes it the perfect for marine and off-road vehicle use.
• Easy Installation: This Marine radio diameter is 3.5 inches; Mounting depth 1.6 inches; Mounting hole cutout: 3.1 inches;The Speakers outside facial Diameter is 4.88 with Mounting Hole Diameter: 3.8, and Mounting Depth:1.38;
• The Marine Radio is power on by DC 12V. And just to make sure the red and yellow wire connect to the positive pole and the black wire connect the negative pole. Package Included: Marine Stereo Receiver GR304 x 1PCS 4 inches Marine Speakers x 1Pair Marine antenna x 1PCS