ONLY COMPATIBLE WITH MacOS 11.3 or Above/ MacBook/MacBook Air/MacBook Pro/Mac/iMac Pro/Mac Pro/Mini etc, NOT fully compatible with other system STABLE CONNECTION & EASY SWITCH TO THREE DEVICES: provides a stable connection at a range of 33ft/ 10m, offering three independent Bluetooth channels, this Bluetooth keyboard supports up to three devices simultaneously and easily switch between them by pressing Fn + Bluetooth button LONG-LASTING BATTERY: built-in rechargeable battery lasts up to 120 hours after 1-2 hours full recharge. It features an environmentally friendly auto-sleep mode. Click any key to wake it up after 20 minutes of inactivity ( NOTE: Use the included cable and a compatible adapter with output 5V. ) FULL-SIZE & ULTRA-SLIM KEYBOARD: This bluetooth keyboard features a full row of macOS shortcut keys to give you access to all controls (Home, Brightness, Volume, etc.). And the numeric keypad makes numbers entering and basic calculations much easier ERGONOMIC & DUR