Welcome to the future: wire-free charging. When you order your Stack Pack, you’re officially cutting ties from archaic charging cords forever. This four piece system provides you with everything you need to begin your wire-free journey, comprised of an iPhone 6/6s case, a wireless charging pack, and an AC wireless wall plug. The charging pack contains a 2,750 mAH battery- big enough to completely charge your iPhone. The Stack Pack charges faster than any other technology because it comes in direct contact with your phone. The beauty of this system is that your battery pack charges - not your phone, so your phone stays with you. The pack is recharged by placing it on the AC wall adapter. You can even purchase additional Power Packs and recharge up to five packs at one time. When you’re needing to charge your iPhone, just take a Power Pack from the charger and place it on the back of the iPhone case. They securely snap together with a magnetic connector. The magnetic technology is built straight into each case and power pack. When you feel the connection, you’ll know that a direct battery transfer is efficiently charging your phone- faster than any other method available.