Having trouble with your iPhone 4 dying before the end of the day? Do you need it to be able to keep up with you throughout your busy and connected day? Then what you really need is the Mophie Juice Pack Air is a case that will have your iPhone keep up with you no matter how busy your days gets.Designed to add as little bulk as possible while preserving iPhone?s beautiful, slim aesthetic, the Juice Pack Air is fully protective and fully functional. You have complete access to all of iPhone?s buttons, headphone jack, and camera. The case does not interfere with the microphone or speakers. Included is a micro USB cable in order to be able to charge the case or phone and sync it to iTunes all without having to take the case off.