JBL BassPro Go is the industry’s first powered subwoofer and portable Bluetooth® speaker, injecting bumping bass to any car audio system when docked in the vehicle. It also works as a portable speaker outside the vehicle when undocked and has a built-in USB power bank to charge your devices. The user can dial EQ settings through the control panel, maximizing bass response in the vehicle, while balancing sound performance and battery life out of the vehicle. The IPX5 rating means JBL BassPro Go can withstand harsh environments, in and out of the car. JBL BassPro Go can also connect with other JBL Connect-equipped speakers to take your listening experience to the next level.