GadgetSys Dual USB ports External Battery Pack 10400mAh High Capacity Portable Backup Power Bank Concurrent Fastest USB Portable Charger for iPad Air iPad Mini 2 iPhone 5S Galaxy Note 3 Galaxy S4 Nexus 7 Nokia Smartphones and Tablets Slim Design and Comfortable Grip Finish, easy to hold in hands and great pleasure to use it Able to get charged for itself when charging other smartphones and tablets to save valuable time Super Fast charging iPad Air or Samsung Galaxy Tablet at 2.1A and iPhone 5S or Galaxy S4/Note3 at 1A Simultenaously Using Best quality Samsung Battery Cell for highest Battery Juice Output and Longest Life Able to give smartphone or tablets 3-4 full battery charge to get your gadgets running non-stop for 24x7x365