Boss Audio Systems B62ABT is a weather-resistant Bluetooth speaker system with built-in amplifier and multi-function controller. It can be powered from a vehicle's cigarette lighter/auxiliary power port or directly to the battery. It features a 3.5mm AUX-input for connecting non-Bluetooth devices and has a maximum volume warning tone in Bluetooth mode. It comes with a handlebar mounting kit for the Bluetooth controller and a security rope for each speaker.