Give your iPhone more storage and more battery with the Space Pack Case from Mophie. Space Pack is a rechargeable battery case that includes either 16GB or 32GB local built-in storage that helps you keep more data with you without having to rely on constant syncing, the cloud or costly upgrades. Increase your Storage Space Pack uses the free Space App to let you manage, enjoy and organise files saved on the Space Pack's own storage, helping you access things that you wouldn't normally have room to save on your iPhone. On the 16GB version, you'll have additional space to save approximately 8,000 extra photos, 7 hours of additional video or 4,500 more songs. The 32GB increases this capacity to 16,000 extra photos, 14 hours of additional video or 9,000 more songs Increase your Battery Life Space Pack's built-in rechargeable 1700mAh battery delivers up to 100% extra battery life with the flip of a switch to ensure that your phone can keep up with your busy lifestyle, while keeping your iPhone sleek and pocketable. You can even check Space's battery level using the LED status indicators, so you'll know when you need to charge again. Protect your iPhone Designed with a dual texture, rubberised, shock-resistant outer band and smooth finish, your iPhone will be well protected and comfortable to hold all day long. The case features integrated pass-through buttons and a proprietary mute switch to keep you fully in control, while a micro USB port will enable you to charge both case and iPhone at the same time, so you can head out with two fully charged batteries. The Space Pack also functions as a virtual speaker box, redirecting sound from the loud speakers on the front of your iPhone to the bottom, resulting in a richer, fuller sound quality. Includes quick start guide and micro USB cable for charging.