Six speaker split system that fits all Commanders and Mavericks. It features four 6.5 speakers up front and two 6x9s down the middle. It houses a large class d amplifier inside which delivers enough power to make your machine the life of any party! All the internal bluetooth versions have a range of 150 plus feet, and the headunit versions feature aux and usb connections as well as bluetooth with 35-40 feet range.