Wireless charging for devices utilizes inductive charging technology, which relies on electromagnetic fields to transfer energy from a charging pad to a compatible device. The charger contains a coil that creates an oscillating magnetic field, while the device has a corresponding coil that receives this energy and converts it back into electrical energy for charging the battery. This technology offers convenience by eliminating the need for physical connectors and cables, allowing devices to recharge simply by placing them on a charging surface, enhancing user-friendly experience.