Shark Waterproof Motorcycle Handlebar Speakers, 300 Watts Each, 3 X 4 Inch, Brackets Included (Fits 7/8 inch to 1 inch handlebars), Black 300 WATTS EACH - Each Speaker has 300 Watts so you can enjoy your music with quality sound while cruising around town or riding on the highway. WATERPROOF - Waterproof speakers will stand up to all kinds of weather conditions like fog, rain, and snow. These speakers are Marine Grade which means they will even work under water. QUICK AND EASY INSTALLATION - Speakers include handlebar brackets and will work with any motorcycle amplifier. Connect them quickly and easily to your current amp for an instant upgrade to your bike. SPECS - Working Voltage 10-16V DC VoiceCoil Impedance: 4 Resonc Frequency: 165HZ Effective Frequency Range: Fo-12kHZ 100% SATISFACTION GUARANTEED - 30 Day Money Back Guarantee and 1 Year Warranty on all Shark products. Customer support available for any questions or concerns about your Shark purchase.