✓ GREAT CUSTOMER SERVICE -- Rest assured that all our LEKVEY Bluetooth number pad for laptop have unconditional 24-month product warranty ( Replace or Refund ) as well as lifetime easy-to-reach technical support. ✓ ERGONOMIC AND POWER SAVING: This Lekvey Bluetooth numeric pad provides optimum comfort and ergonomic tilt. Besides, the wireless number keypad with long-life battery life ( needs 2aaa batteries ), it will auto power-saving mode when not in use for 15 minutes, press any key can wake up within 3 seconds. ✓ SOFT TOUCH - HIGH-END SCISSOR SWITCHES KEYPAD : This slim portable Bluetooth number pad for laptop with comfortable typing precise control, good resilience fast response and reduce the press sound, give you a quiet office operation. Just enjoying the Bluetooth number pad when you on business trips or at accounting-related work!. ✓ COMPATIBILITY : This sleek Bluetooth number pad for laptop is widely compatible with Windows 2000/ Me/ 98/ XP /Vista/ 7/ 8/10, Android, iOS, Mac OS, Surface Pro, Android Cellphone Tablet PC Laptop Desktop etc. ?NOTE: This Bluetooth numeric keypad is NOT compatible with ChromeBook. And on the Macbook OS system or Apple iPad iPhone iOS system, the calculator key and functional keys can not work but other 10 keys and symbol keys ESC, Tab work well ?. ✓ BLUETOOTH CONNECTION: The stable Bluetooth technology provides a cable-free & clutter-free connection, the external 10-keys Bluetooth number pad extends your existing laptop keyboard, operating distance 10m. No need USB dongle. ?NOTE: If your devices don't have bluetooth function, you need to use third-party bluetooth adapter (not included) before using ?. ✓ MULTI-FUNCTION 28-KEYS BLUETOOTH NUMBER PAD : This premium Bluetooth number pad full-sized 28-key with Numlock, Delete, Tab & More Use. The classic wireless numeric keypad with ?“calculator shot-key”and numlock functional keys (PgUp, PgDn, Home, End, up, down, left ,right arrow keys), "$", (), DEL, = + - / * , Backspace, ESC, Tab, ' . 00, 0123456789, enter keys ?which assist you in accounting tasks, excel spreadsheets. Greatly improve your work efficiency!.