Boss MR648UA Marine CD/AM/FM/USB/SD Player+6.5" Speakers+Aux Cable+Antenna+Guard Boss MR648UA Marine CD/AM/FM/USB/SD Receiver+6.5" Speakers+Aux Cable+Antenna. Boss MR648UA Receiver. 60 Watts x 4 Channels Max Power. Marine Rated. Preset Built-in EQ. Detachable Face. Wireless Remote. Playback CD/MP3, FM/AM, USB, SD, Aux Inputs and One Pair of RCA Outputs. Speakers:. Weather Proof One Pair of MR6W 6.5" Full Range Marine Speakers with Poly Carbon Cone and Rubber Surround. 180 Watts MAX Power Handling per Pair. 90 Watts RMS Power Handling per Pair. Rockville RWSG3W Universal Marine/Boat Stereo Receiver Waterproof Splash Guard Case. White colored housing case. Recessed design accommodates most 1.0 DIN head units. White colored fold-down door with rubber seal. Spring loaded flip door. Support shelf in housing for radio. Hinge can be mounted up or down. Concealed stainless steel mounting hardware included. EVA foam mounting gasket. High-temp and UV-resistant ABS polymer construction. Overall dimensions in inches: 9" W x 4.1" H x 1.92" Depth..