Shark 250 Watt 3 Channel Motorcycle Boat Snowmobile Audio System, Waterproof Stylish Speakers (Subwoofer Output), MP3 or Phone Input, Wired Remote, Model shkr3090, Black QUALITY 250 WATT SYSTEM - Compact system perfect to tuck away on your ATV, Scooter, Jet Ski, Boat, Golf Cart or Motorcycle. Enough power to hear your music rolling down the road or cruising on the water. QUICK AND EASY INSTALLATION - System includes black speaker brackets, speaker wiring, power cord, aux cord, and wired remote. SMALL POWERFUL AMP - This 250 Watt amp is small enough to tuck into your custom ride, yet packs the power to drive the 100 Watt Waterproof speakers to their FULL POWER. Working Voltage 10-16V DC. SPEAKER SPECS - VoiceCoil Impedance: 4, Resonance Frequency: 165HZ, Effective Frequency Range: Fo-12kHZ, Putout Sound Pressure Level: 88dB, Rated Input Power: 15W, Max Input Power: 100W, Distortion: Less than or equal to 5% FEATURES - 3.5mm AUX input, LCD Screen to show FM frequency, FM radio, and wired remote