Quality stereo speaker system connects to your digital music player or smartphone, power via 4 D-cell batteries, not included * See-through cover helps easily identify selection and function of your music player 6 watt speakers are safe from sawdust and are weather resistant * MegaMouth design for easy access to main compartment has internal metal frame to help keep it open * Thirteen multi-use pockets inside and eighteen outside allow for storage of your favorite tools, parts and accessories * Padded shoulder strap for comfortable and convenient no-hands transport and base pad feet to help reduce wear and abrasion