A4Tech FBK27C AS Bluetooth & 2.4G Rechargeable Wireless Keyboard offers seamless multi-device connectivity with Bluetooth and 2.4GHz wireless technology, allowing you to switch effortlessly between up to three devices. Featuring quiet chocolate keycaps, USB Type-C rechargeable battery, 12 FN hotkeys, one-touch shortcut keys, and operating system swap, the A4Tech FBK27C AS Bluetooth & 2.4G Rechargeable Wireless Keyboard is perfect for Windows, macOS, iOS, Android, ChromeOS, and HarmonyOS, delivering comfort, productivity, and wireless convenience.