EPCTEK&trade;New Black 13000mAh External Battery Backup Charger for iPhone 5,4S, 4, iPad 4, 3, 2, Mini, iPods, Samsung Galaxy S4, S3, S2, Note 2, Note 8, Tab 3;HTC One, EVO, Motorola ATRIX, Droid, Fit for your iPhone 4S / 4G / 3GS/Samsung Galaxy S4 / S3, Nokia and other smart phones; Compact, portable, Sleek, stylish and compact design; Easily fits into your bag to provide instant power; PERFECT for train, road trips Whenever you need to charge your mobile devices wherever you are. High quality Lithium-ion battery ensures reliability