Juice Pack Plus Battery Case for iPhone 4/4S (Black)

The juice pack plus has openings for your iPhone's camera lens and pass-through control buttons along the sides. Whether you're traveling across country or just spending the day running around town, you want your iPhone to keep going as long as you do. And if its battery runs down when there's no outlet near? Not a problem with the mophie juice pack plus. 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. Double your iPhone's battery life Slip your iPhone onto the juice pack plus' 30-pin connector and close the case. It's now connected to a built-in rechargeable battery that can double your reserve of power. That's enough for 8 additional hours of talk or Internet use, or up to 44 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 plus 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.