LEXIN Bluetooth Speakers w/ Built in Amp Waterproof Marine w/ P Clamps for Motorcycle, Atv, Snowmobile Mid-range 3"loud speaker with wired remote control.Built-in 2*50W watts amplifier,supply amazing sound for you Adopt digital amplifer,avoid main body generating heart.Built-in bluetooth,universal paring function AUX-in 3.5mm plug port for ipod,iphone,GPS$etc.Support voice prompt function Waterproof design,handles all weather conditions P shape handlebar clamp included,easy installation.