TYLT Powerbag Travel Battery Charging Backpack: Laptop Computer Bag Power Bank - USB Charger for Phones and Tablets CHARGING STATION TRAVEL BACKPACK - Power bag USB charging hub for phones laptops tablets and portable electronics charges up to 3 devices using a powerful built in rechargeable 10,400 mAh battery LAPTOP BACKPACK FOR SCHOOL & BUSINESS - Multiple water resistant deep zipper pockets with cord routing anchors to organize cables and padded tablet or computer compartment for traveling college or work TSA APPROVED MESSENGER BAG - Padded shoulder straps are ideal for flying and airports with anti-theft RFID fraud protection and convenient rolling bag airport trolley pocket and metal zippers USB COMPATIBILITY - Backpacks work with all USB charging cables for fast convenient recharging of virtually any cell phone or electronic device; two 1 Amp ports and one 2.1 Amp port 1 YEAR WARRANTY - At TYLT we build our backpacks to last offering a one year warranty that covers any performance issues or damages so youll never again have to worry about your devices losing power