The juice pack air® for iPhone® 5The Juice Pack Air is an thin rechargeable external battery concealed inside of a protective form-fitting case for the iPhone 5. It offers the full protection of a hard shell case while providing virtually double the chargeThe ideal case for the everyday 9-5er and for those whose day doesn"t always end when they leave the office. Lighter and thinner than previous generations, but packed with more power to make sure your phone can keep up with your busy lifestyleUp to 100% extra battery with the flip of a switch. Turn on the case when your battery runs low to stay fully charged through the late nightsThe refined outer band and smooth finish makes for a comfortable all-day hold while defending from everyday wear and tear. Integrated, pass-through buttons and proprietary mute switch seamlessly blend the design of the case with your iPhone. Recharge both devices together with the included micro-USB cable to make sure you always head out with two fully charged batteriesFrom the dawn patrollers to the parents rushing to get the kids off to school. From the busy day filled with meetings and presentations to the day off filled with errands and friends. The juice pack air ensures you have more than enough power packed into a streamlined, protective case so you"re ready to take on the dayDimensions: 2.60 in x 5.54 in x 0.63 in, Weight: 2.68 oz, Battery Capacity: 1700 mAh, Product Compatibility: iPhone 5Talk Time: Up to additional 8 hours on 3GInternet Use:Up to additional 8 hours on 3G, Up to additional 8 hours on LTE, Up to additional 10 hours on WiFi.Audio PlaybackUp to 40 hours.Video PlaybackUp to 10 hours