Boom 5-Way Cart Bag Built-in speakers in the Boom Bag allow you to bring your favorite playlist to the course with you. Simply connect your device to the wireless controller, plug your speakers in and enjoy! If needed, the wireless controller can plug into a portable charging device for extra playing time. Features: The velour-lined valuables pocket has multiple slots to hold your Bluetooth controller/speaker battery and phone Wireless controller can plug into a portable charging device for extr