The compact Cooper Prime battery is not only a premium case and an eye—catching electronic "filling" under a transparent panel, but also fast QC 3.0 charging of the battery itself, and fast (at least twice as fast as usual) wireless charging of the gadget, as well as the ability to fix the battery on the back cover of the phone. On iPhone 12-15, it is magnetized without any additional devices, and for iPhone 8-11 and Android devices with wireless charging, we recommend purchasing a Magmate sticker adapter to maximize this advantage.