iHome Portable Battery Pack for Universal/Smartphones - Gold PREMIUM LI-ION BATTERY - High quality Lithium Ion batteries provide many recharge cycles. ULTRA SLIM DESIGN - Ultra slim 1 cm. thick aluminum body provides the ultimate in portability. Thinner than most wallets, this will easily fit in your pocket or in a purse. UNIVERSALLY COMPATIABLE - Charge this battery pack with any standard micro USB cable and charger! EXTRA TIME! - Despite is ultra slim design, this battery packs 3,000 of capacity, That's a full charge for most modern smartphones! METALLIC COLORS - Available in several metallic colors. Grab the color of your choice and your back up battery will look as great as your new iPhone, Galaxy, Motorola, LG or any smartphone.