Pyle PLMCA70 800 Watts Motorcycle/ATV/Snowmobile Amplifier with Dual handle-bar Mount Weatherproof Speakers with MP3/iPod Input 200 Watts X 4 Micro Amplifier with Wire Harness - Speaker Dimensions : 2.5''(W) x 2.5''(H) x 3.75''(L) Quad Chrome 2.25'' Bullet Style Weatherproof Speakers / Neodymium Magnet Structure - Amplifier Dimensions : 3.05''(W) x 1.19''(H) x 5.71''(L) Universal Handlebar Mount Rotary Volume Control - Sold as: Unit 12 Volt T-TAP Easy Chrome Stainless Mounting Brackets and Accessories included