Celebs, like the majority of us, are constantly on our smartphones. Between social media updates and emails, it's no wonder the battery life can drain so quickly. Leave it to savvy stars like Miley Cyrus, Kelly Osbourne and Zooey Deschanel to pick up a Boostcase, a genius little gadget that doubles the battery life of your iPhone by charging it on the go. A colorful snap case offers vibrant protection, while a hybrid battery slips on and off as needed.