Smaller Than Ever: Anker's new MiniCell technology delivers identical charging performance with fewer components. This means it's smaller and lighter than ever before. Pocket-Sized Power: Slim enough to snap to your phone and slip into your pack, purse, or pocket. Strong Attachment: Equipped with ultra-strong magnets that firmly attach to the back of the iPhone 13 or 12 so you can single-handedly take selfies, make calls, and more. Charge in a Snap: Align your iPhone and battery with a snap. Say goodbye to disconnection issues caused by wireless charging misalignment.