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Description Full body coverage protection for your iPhone. Works as both an extended iPhone battery set and a protection case. Slimmest iPhone battery case ever made. Brand new, super hot. Free USB cable included. This External Power Battery Pack Air and in tegrated case for iPhone 4G is an ideal and powerful companion for your endeared iPhone 4G. It acts both as a protective case and also as an excellent external battery pack. The potent built-in 1900 mAh Lithium-ion Polymer battery can be engaged using the On/Off switch button at your will and it is able to provide additional talk time by up to 6 hours for your iPhone 4G and stand time by up to 230 hours. This case is stylish and portable with textured black non-slip finish: 2 in 1 battery & docking as well as provides full body coverage for your iPhone 4G. Features: Smart battery (Optimized to lengthen your iPhone performance time; no more out of power dilemma during important phone conversations.) Full Body Coverage for iPhone 4G. Lightweight, thin design (Low profile). Non slip comfort grip. Automatic tests function. High-quality Li-polymer Cell. Extended battery pack - 1900 mAh. ON/OFF button for optional power output control. Four LED lights indicates the power level remaining the case (Each light represents 25% of remaining power.) Sleek, Low-Profile design; Rechargeable up to 500 times. Specification: Fully charged in 3 Hours. Battery type: Lithium-ion polymer battery (Way better than Lithium-ion batteries). Output voltage: 5V Output current: 500 mA OEM Version/Retail Gift Box Package, iPhone 4G USB cable included. Please make sure to charge your battery case for at least 8 hours before first use to achieve maximum performance. Compatible: For iPhone 4 4G     Package Included  :   1 x iPhone 4G External Battery Charger Case In Retail Box 1 x USB Cable 1 x User Manual