[DESIGNED FOR MAC OS AND WINDOWS USERS-SUPPORTS DUAL SYSTEM] The aluminum body and simple and stylish design of the Bluetooth number pad are a perfect match for MacBook and MacBook Pro / Air. The keypad can also be used on Windows 10/8/7 / Vista / XP and most brands of laptops on the market. In Mac OS mode, you can set the F13-F19 button to any shortcut from the system settings. In Windows mode, F13-F19 supports the keys "Esc", "Calculator", "$", "(", ")", "Backspace"! | [SIMPLE & RELIABLE PAIRING] No drivers, software or hassle; simply enable your Mac's Bluetooth to sync the Bluetooth number pad and start working immediately. Bluetooth 3.0 technology provides a cable-free & clutter-free connection, the external 35-keys full keypad extends your existing keyboard, operating distance 10m. | [SLIM ALUMINUM DESIGN] This portable mini numeric keypad is constructed of solid and premium aluminum materials for long-lasting use, the ergonomic tilt for comfortable typing and good look, Space gray aluminum body and slim style appearance ( Only 5.7 * 4.4 * 0.45 inch ), perfectly matches your Macbook, MacBook Air / Pro, iMac, PC, surface pro, laptop or desktop as the side external numeric keypad. | [HIGH-CAPACITY RECHARGEABLE BATTERY] KcBlue Bluetooth number pad built-in 300mAh lithium rechargeable battery & has an automatic sleep mode to maximize battery efficiency. The Bluetooth numeric keypad is easily recharged through the included USB-C cable, no need to change the battery and user- friendly. | [MULTI-FUNCTION 35-KEYS NUMBER PAD] Full-sized 35-key with Numlock, Delete, Tab & More, Use the wireless keypad with 35 function keys including backspace, home, end, tab and more to assist in accounting tasks, excel spreadsheets, and more to expand your existing keyboard.