USTOP&trade;Glod 2600mAh cylindrical External Battery Backup Charger for iPhone 5,4S, 4, iPad 4, 3, 2, Mini, iPods, Samsung Galaxy S4, S3, S2,Thunderbolt, Incredible, Droid DNA, Motorola ATRIX, Droid, 100% Brand New Input: DC 5V, 800mAh Output:DC 5.0V,800mAh Capacity:3.7V/2600mAh Compatible Brand: For Apple,Samsung, LG ,HTC etc.