Built into this slim, protective case is a long-lived 1450 mAh lithium-ion battery that delivers 5 watts of power to charge your iPhone while you carry it. The included USB charge cable plugs into the case's micro USB connector to top off your iPhone and then charge the case's Reserve battery. An LED indicator reveals charge level at a glance. A black frame and clear frame are included.

While it's taking care of your battery, the case is taking care of the back and sides of your iPhone. The Reserve Battry Case fits iPhone 4 models from all providers.

• Slim 1450 mAh lithium-ion battery pack
• Micro-B USB connector and 30" / 76.2 cm cable for your iPhone
• 5 watts (5 V DC @ 1 amp) of fast charging power
• Power switch and LED charge level gauge
• Fits iPhone models from all providers