ESECURE - Portable External Battery Charger Power Pack 1900mAh compatible with ALL iPhone 4S 4 3G 3 Classic, iPod Touch, iPod (all generations) and iPad Nano (Electronics)
Good product, easy to use, intuitive control thanks to its load. Mixed and that's the charge, I'm on iphone 4S, and I just happen to recharge my battery once, so do not expect to last long with a battery of this type. But a good product for troublesh