IC key is the abbreviation of Integrated Circuit, meaning integrated circuit key. It is a key used to control electronic devices, usually used on circuit boards in electronic products. The IC key can achieve a variety of functions on the circuit board, such as controlling the power switch, adjusting the volume, selecting different input sources, etc. It has a built-in microprocessor that can be programmed to implement complex control functions. The advantages of IC keys include simple structure, easy installation and use, and space saving. In modern electronic products, the IC key has become an indispensable part.