Kenwood Bluetooth USB CD Marine Boat Yacht Radio Stereo, 2 X 6x9" Inch Marine Speakers & 2 X 6.5" Marine Speakers, 400W Marine Amplifier System - Outdoor Marine Audio Kit Package Includes: 1 Stereo 4 X Speakers 1 X Amplifier AM/FM radio with station presets, CD player for standard audio CDs and also CDRs burned with MP3 or WMA files, 200 watts peaker power (50 watts x 4 channels), Removable faceplate, Front USB port for connecting iPod, MP3 player or smart phones (recharge and control) Compatible with devices enabled with Pandora, I Heart Radio and other apps, Front 3.5 mm aux audio input for patching in the audio from any external source, Digital clock, Variable color LCD display and illumination Display dimmer function, SiriusXM satellite radio ready (requires receiver and antenna sold separately) Wired remote ready for up to 6 waterproof remotes (requires KCA-RC35MR remote sold separately) Rotary encoder for easy control, 3 pairs of RCA preamp outputs for sending a clean signal to an amplifier (front, rear, subwoofer) Subwoofer level control, Built in equalizer and bass boost, Bluetooth enabled for audio streaming and hands free operation, Standard DIN installation size (7 x 2) 6'' x 9 High Quality White Polypropylene Cone, Santoprene Surround, Water-Resistant Construction, 2 Way Attachable Grille Design, 1.25'' High Temperature Kapton Voice Coil, 1'' Neodymium Dome Tweeter, 70 Oz Magnet Structure, 300 Watts Rated Peak Power, Frequency Response: 50Hz-20K Hz, 4 Ohm Impedance, Sensitivity: 93dB, Includes Custom Grills, Mounting Gasket, Installation Hardware, Mounting Depth: 3.35 6.5 Dual Cone Full Range speakers, Completely Waterproof, For Marine or Car Door Use, Cut-out Size: ?135 mm, Polypropelyne Cone with Cloth Surround, Built-In Molded Grill, Molded ABS Basket, 1 Aluminum Voice Coil, 20 Oz. Circuit Magnet, Power handling: 150 Watts Peak, Frequency Response: 45-16KHz, Impedance: 4 Ohms, Mounting Depth: Only 11/2