Boss Audio Stereo Package MCK2606W AM/FM/CD with Wired Remote and MR60W 6.5" 2-Way Marine Speakers and Marine Dipole Antenna MR1600W Marine CD Receiver with Wired Remote ISO DIN mounting Illuminated control buttons PLL synthesized tuner Switchable USA/Europe radio frequencies 30 station presets Quartz digital clock CD mute function Track repeat Intro scan 1 Bit D/A converter 8x oversampling CD-R/ CDRQ compatible Front auziliary input ESP (Anti-Skip Mechanism) Preset EQ response curves Separate bass and fader control Balance and fader controls Dual (front and rear) RCA outputs Loudness Stereo/Mono & Local/Distance switches Wired remote control with 15' cable Subwoofer output RDS (Radio Data System) ID-3 Tag compatible PCB with conformal coating Front panel UV coating 5 volt pream output Output Power: 60w x 4 channels MR60W 6.5" 2-Way Marine Speakers Power Handling, Peak 200w Magnet Structure 40oz Impedance 4 OHM Frequency Response 80HZ-20KHZ SPL 1 watt/1 meter 90dB Cone Material Poly Injection Voice Coil 1" Aluminum Tweeter 1" Mylar Dome Grilles Plastic