Wireless power transfer is a technology that allows electrical energy to be transmitted from a power source to an electrical load without the use of physical connectors. This is typically achieved through methods such as inductive coupling, where magnetic fields are used to transfer energy over short distances, or resonant inductive coupling, which can work over longer distances. This technology is commonly used in applications like wireless charging pads for smartphones and electric toothbrushes. It has the potential to power various devices, including electric vehicles and medical implants, enhancing convenience and reducing the need for cables and plugs.