Weather Proof Pair of Chrome 3 Full Range Speakers;600 Watt Max Amplifier with Wireless Keychain 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 >85dB, THD: < 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