The wireless Magic Keyboard included with your iMac has built-in features that make it easy to enter emoji, switch keyboard languages, lock your iMac, and perform many system functions with the touch of a key. The Magic Keyboard with Touch ID also lets you use a fingerprint to sign in and make purchases using Apple Pay.
Note: Touch ID and the function keys work as described above for any Mac with M1 chip and macOS 11.3 or later.