The technology used for wireless charging of devices typically involves inductive charging or resonant charging methods. Inductive charging utilizes electromagnetic fields to transfer energy between a charging pad and a compatible device, allowing for cord-free charging. This technology is commonly found in smartphones, electric vehicles, and various electronic devices. Resonant charging expands the range and efficiency of wireless charging by enabling devices to charge at greater distances. Both technologies promote convenience, reducing the need for physical connections and enhancing user experience in device charging.