EASY SET-UP: Simply connect your wireless keypad via bluetooth and start crunching numbers right away. No drivers required! COMFORTABLE AND ERGONOMIC DESIGN: With 18 full-size quiet keys, the numerical keypad is easy and comfortable to use. Also, the tilted slope helps prevent wrist strain. PERFECT LAPTOP ADD ON: The Bluetooth 10 digit keypad is the perfect gift for bookkeepers working on Excel, teachers entering grades, office workers for data entry, etc. SMART LONG LASTING BATTERY DESIGN: This wireless Macally number pad features an Automatic sleep function feature alongside a rechargeable battery as well as an ON/OFF switch for extended usage UNIVERSAL COMPATIBILITY: This wireless number pad is compatible with any computer and tablet with Bluetooth (Mac OS X v10.6 or later; Windows 7/8/10/XP/Vista)