FM Radio / AUX Models - Power On / Off Switch - Kapton Voice Coil - Chrome USB Charger.Built In FM Radio Electric Up/Down Auto-Scan Tuning System - 4 Channel Micro Amplifier(350W of each Speaker Output) with Wire Harness - Pair of Chrome Clamps - Easy Chrome Stainless Mounting Brackets and Accessories Included.Dot Matrix LCD FM Frequency - 175 Watts x 2 @ 4 ohms or 175 Watts x 4 @ 4 ohms - Chrome Universal Handlebar Mount Rotary Volume Control - Speaker Dimensions: 3.25"(W) x 3.25"(H) x 4.375"(L).Volume Digital Control - 3.5mm Stereo Input Jack, Easy Connection to the Output of Other Audio Devices Like CD/MD/Mp3/Ipod, etc - Chrome Stainless Universal Handlebar Audio Mount - Amplifier Dimensions: 3.50"(W) x 1.375"(H) x 3"(L).Mute Function - Dual 3" Dual Aluminum Die-Cast Bullet Speaker - 12 Volt T-TAP The OPTIMC80 weatherproof speaker system is what you need to listen to high-quality auto on your motorcycle, ATV, or snowmobile. It comes with a pair of 3” bullet-style 350-watt weatherproof speakers and a 700-watt, two-channel amplifier for complete immersion in your music. Plug your MP3 player or iPod into the included 3.5mm jack to listen to your favorite music on this stylish system. Or, scan through radio stations with the FM radio. Charge your MP3 player with the satellite USB plug (USB for charging only). Easy handlebar 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.