iPhone 1900mah Backup Charger ?

Designed to provide power for your iPhone 4/4s Compact and lightweight, you can use your iPhone as usual as you use this external battery. Built-in 1900mAh high capacity rechargeable Li-Ion battery. Can also work as a protective case. Battery itself charged through USB port or USB charging adapter. Specifications: Battery type: Lithium-ion battery Capacity: 1900mAh Input: 5V 1A Output: 5V 500mA Standby time: Up to 230 hours Talk time: Up to 6 hours Internet use: Up to 5.5 hours; Up to 8 hours on Wi-Fi Audio play: Up to 30 hours Video play: Up to 8 hours Color: White Item weight: 110g Package Content: 1 X External Battery for iPhone 4/4s 1 X USB Cable 1 X User Manual Accessory ONLY. Phone not included. Item include retail packing. 5 left! Email, text or ring for more info