EPCTEK 2600mAh External Battery Pack Power Bank Charger USB output for Apple iPhone 5 4s 4 3Gs 3G , iPod Touch, iPad 1 2 3 4, The New iPad 3/ HTC sensation, XE, XL, One X S V, Thunderbolt, Inspire 4G , EVO 3D, EVO 4G, Desire S Z HD / Samsung Galaxy S3 S2 S 2 II ACE Mini, S Advance, Galaxy Nexus, Nexus 7, Tab / Motorola Atrix 2, Droid 3 X X2 Razr Maxx, Bionic, Triumph -Green Capacity:3.7V/2600mAh;Fit for your iPhone 4S / 4G / 3GSSamsung 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 battery ensures reliability Input: DC 5V 1A, Output: DC 5V 1A; Charge the power bank via standard USB or AC adapter (not included)