mophie Juice Pack Plus for iPhone 4/4s (Certified Refurbished) Constantly using your iPhone? Rest assured knowing you can spend all day on the road, in the office or around the house without having to worry about a dead battery. This innovative smart battery case adds up to an additional 8 hours of talk time (up to 16 on 2G) 44 hours of audio or 11 hours of video playback On a single charge, the mophie juice pack plus provides your iPhone with more than double the time to rock, talk, surf and send, extending battery life by hours. The dual-injected, hard-shell case provides complete protection while the rubberized outer band adds some style and extra cushion if dropped. The juice pack plus is the perfect battery case for weekend travels or business trips. The hard-shell case and rubberized outer band dont interfere with any iPhone features or functionality, because you can easily access all of the controls. In fact, the juice pack plus has integrated volume and sleep/wake buttons for added comfort and protection. The included micro-USB cable allows you to use your wall plug to charge the juice pack and your iPhone together. You can even sync and download photos and other files when connected to a computer. Lastly, acoustic, sound-enhancing, forward-facing speaker ports amplify and redirect audio toward you rather than down. Four LED lights on the bottom let you keep tabs on how much power is left in the juice pack plus battery. Also, when plugged in, the LEDs keep you updated on juice pack's charging status. null