Waterproof Bluetooth Sound System From Big Bike Parts With Speakers. The next generation in handlebar stereo audio is here from Big Bike Parts with Bluetooth Connectivity in our market leading Waterproof Sound System. Easily pairs with your Bluetooth device, while also retaining a 3.5mm Universal Aux-in connection for non-Bluetooth devices allowing the use of your iPod, MP3, Satellite Radio or other hardwire plugs. Available with our custom engineered 2-1/2" black big sound speakers and a Bluetooth compatible 40w waterproof amplifier Universal clamps for both 7/8" or 1" handlebars and mirror mount brackets for alternating mounting. Universal Fitment on any Motorcycle, ATV, UTV or Jetski with Handlebar, Mirror Mount or Flat Surface Mount Options Complete Waterproof Stereo System Including Bluetooth 2 Channel Amp and 2 1/2" Speakers Designed to Play Your Music on the Go with Easy Connection of Bluetooth Devices or an Universal 3.5mm Aux Input for Your IPhone,MP3 or other Devices Volume Control Mounts to Handlebar Allowing Easy Access in Reach E-Mark and FCC Certified