iGo Power Trip 6100 Portable Battery for iOS and Android Devices - Purple Dual USB ports on the portable backup battery allows you to charge two devices at once Both USB ports are marked to show you where to plug in your Tablet and Smartphone USB to Micro USB charging cord that charges the internal battery comes with a stylish Cable Holder so you can conveniently store your charger LED Light indicates transfer of charge while also depicting the life of internal battery