SOUND STORM SMC75 Black 600 watt Motorcycle/ATV Sound System with Built-in FM Tuner with One Pair of 3 Inch Weather Proof Speakers Weather Proof Pair of Black 3" Full Range Speakers 600 Watt Max Amplifier with Wireless Remote Built in FM radio with auto-scan tuning, USB, SD and 3.5mm Aux Inputs 3.5 mm Aux Input Compatible with Audio Output of Smartphones and MP3 Players Frequency Response 80Hz to 15KHz, SN &gt;85dB, THD: &lt; 0.01% Includes Mounting Brackets Adjustable to fit 0.75" to 1.25" Handle Bars Great for 12V Motorcycles, Scooters and ATV's! 3 Year Platinum Dealer Warranty