Juice Pack Rechargeable External Battery for iPhone - White

The juice pack air has openings for your iPhone's camera lens and hadphone jack, and pass-through control buttons along the sides. Running around town or running to catch a plane, there's one thing you don't need - an iPhone with a depleted battery. Good luck finding an open outlet to recharge your phone in an airport, store, or city street! Enter the mophie juice pack air. This protective case features a built-in battery with enough power to keep your iPhone 4 or iPHone 4S going for hours after its battery has run out. Almost double your iPhone's battery life Slip your iPhone onto the juice pack air's 30-pin connector and close the case. It's now connected to a built-in rechargeable battery that can greatly increase your reserve of power - enough for 6 additional hours of talk or Internet use, or up to 36 more hours of audio playback. You can set the juice pack air to keep your iPhone continuously charged, or with a button press recharge your iPhone quickly when you need it. An all-access case The juice pack air has a USB charging cable that can connect to a computer or USB-compatible power adapter. And good news - you can sync your iPhone through the air's charging cable. Integrated pass-through buttons let you control volume, mute, and power on/off. An included adapter lets you plug your headphones into your device through the case.