With the integrated 10000 mAh power bank and built-in USB system you can simultaneously charge 2 devices. Removable 10000 mAh power bank with 2 USB ports for internal charging and a micro USB port to recharge the power bank. Recharge the power bank with a micro USB cable and AC wall adaptor， both items included with the USB charging system. 20 Multi-use pockets inside， 3 pockets outside， and measuring tape clip to help organize a wide variety of hand tools. Multiple interior panels hold a multitude of tools and accessories like drills， pliers， screwdrivers， wrench sets， drill bits， testers and more. Vertical wall to organize a variety of extended screwdrivers and hand tools. The back zippered charging compartment contains 4 internal charging wall pockets for tablets， smartphones and small laptops， built-in USB ports， power bank pocket and laptop sleeve. Padded web carrying handles and adjustable shoulder strap make carrying more comfortable and convenient. Large pads on back for extra comfort make carrying loads more comfortable on stress areas of the back. Base pad feet help reduce wear and abrasion. Approx. 14.5"L x 6"D “ x 18.75"H