Marine Digital Media Bluetooth Receiver + 6.5 Black RGB Waterproof Boat Speaker. 1PCS x Marine Radio. 1Pairs x Marine Speakers. More of your needs. 2Pcs AUX input VS 2Pcs AUX input. 2Pcs RCA output VS NONE port. USB port VS USB port. ISO port VS NONE port. Antenna port VS Antenna port. Cutting Size of Reference. Dimensions Mounting Hole:88.12mm. Dimensions Mounting Depth:70mm. Provide a better understanding of your installation! Bluetooth Audio Wireless Steaming. 4 x 45W output. Frequency Range (Hz):20Hz-20000kHz. Power supply:DC 12V. 6.5 inch 2 Way 240Watts Marine Waterproof Speakers. Power max: 150 W. Cone size: 6.5. Outside 0: 192 mm. Mounting hole 0: 142 mm. Mounting depth: 65 mm. Card Type RF Remote. All items will be tested in advance before sending out. Marineaudios_9 , our company is dedicating to reseach & development of marine audio series products. If you are dissatisfied for any reason, please donot be quick to leave negative/neutral feedback. Our working time: Monday to Friday 9:00 18:30 (China time).