300 watts total channel micro amplifier with wire harness.3.5mm stereo input jack for easy connection to the output of other audio devices like CD/MD/MP3/iPod, etc..Dual chrome aluminum bullet style 2.25" speakers.Universal handlebar mount rotary volume control.Easy chorome stainless mounting brackets and accessories included This weatherproof speaker system is what you need to listen to high-quality auto on your motorcycle, ATV, or snowmobile! It comes with two 2.25” bullet-style 150-watt weatherproof speakers for each channel and a 300-watt amplifier. Plug your MP3 player or iPod into the included 3.5mm jack to listen to your favorite music on this stylish system. Take total control of your sound with the included volume, treble, and bass digital controls. Easy mounting brackets and accessories are included to make installation a quick process. Now you can listen to music on the go, anywhere – thanks to Pyle’s Cycle Series speakers and amplifiers.