EPCTEK&reg;New Red flat shape 3000mAh Portable External Battery Power Bank Backup Charger for iPhone 5, 4S, 4, Galaxy Nexus, BlackBerry Q10 Z10 Z30, HTC, LG, Motorola,Nokia 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 trainroad trips, or whenever you need to charge your mobile devices wherever you are. High quality Lithium-ion battery ensures reliability; InputDC5V/1A ; Output:DC5V/1A