Qi wireless charging is a technology that allows devices to charge without the need for physical cables. It uses electromagnetic fields to transfer energy between a charging pad and a compatible device, such as a smartphone or smartwatch. This method provides convenience, as users can simply place their device on the pad to start charging. The Qi standard was developed by the Wireless Power Consortium and is widely adopted by many manufacturers. Devices that support Qi charging typically have a built-in receiver, enabling them to receive power wirelessly. This technology is becoming increasingly popular in homes, offices, and public spaces.