... Portable USB charger for iphone 3G,3GS,4G,4GS :Specifications:charger for iphone 3G,3GS,4G,4GS 1.Charger your IT products 2.Stable and safe ... 4.The charger can choose the current(1000mA) automatic according to the battery capacity.5.white carton box or bliter package ... are interested in our products,Please feel free to contact to us at your convenience. Portable USB charger for iphone 3G,3GS,4G,4GS