This Wireless Charging Pad is a convenient and efficient way to charge your devices. It is compatible with most smartphones and other Qi-enabled devices. The pad is designed to provide fast and efficient charging, with no cables or cords required. It also features an LED indicator light to let you
From Wikipedia
Inductive charging, also known as wireless charging or cordless charging, is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in vehicles, power tools, electric toothbrushes, and medical devices. The equipment can be placed over an inductive pad free of any electrical contacts such as a dock or plug.