"The CLC 39-Pocket Audio Speaker Tool Bag lets you bring your tunes along with your tools to the jobsite. Its built-in high quality stereo speaker system connects to your digital music player or smartphone for hours of high-fidelity listening pleasure while you work. See-through cover helps you easily identify selection and function of your music player. Bag features MegaMouth design for easy access to main compartment and has internal metal frame to help keep it open. Closure Type Zipper, Color Black, Dimensions L x W x H in. 21 1/4 x 7 1/2 x 13, Material Type Canvas, Strap Type Adjustable shoulder, Pockets Included qty. 39, Straps qty. 2 Padded web carry handles, 1 Shoulder strap, Organizer Type Bag. Tech Gear audio speaker system connects to digital music player or smartphone Powered by AC wall plug transformer, 12V DC adapter or 4 D batteries not included MegaMouth canvas bag has 18 multi-use pockets inside and 21 multi-use pockets outside to store tools, parts and accessories Padded web carrying handles and adjustable shoulder strap for comfortable and convenient no-hands transport Base pad feet to help reduce wear and abrasion Transformer 100-240V AC in, 5V DC out and is UL listed 3.5mm TRS audio in jack"