1. Multifunction 34Key Keypad: With NumLock, ESC, Delete, pgup, pgdn, insert, 00 and a keypad/calculator key which can switch calculator and keypad mode directly etc. The numeric keypad is equipped with calculator function, perfect for financial accountants, students, office specialists, and spreadsheet experts. 2. : Plug and play, this wireless Bluetooth keypad supports 2 connection modes: Bluetooth 5.0 and 2.4G wireless. Slide the power switch to 'ON', the red indicator will be on, then press and hold the Bluetooth button or 2.4 button for 3 seconds to enter pairing mode, no delay and, fast data transmission, and working range is up to 33FT. The Bluetooth wireless keypad also has the auto sleep function, lower power consumption. Press any key can wake up the Bluetooth number pad within 3 seconds. 3. Stability UltaSlim Design: With advanced quiet SCISSORSWITCH KEYS provides a comfortable and smooth typing experience, quick response and good tactile rebound, keep the office quiet and improve work efficiency. Bluetooth number pad is constructed of solid and premium ABS materials for longlasting use, 15° tilt design fits the human body habits, slim style appearance, great for spreadsheets worker, accounting staff and financial officer. 4. Widely Compatibility: Fully compatible with Windows, iOS, Android, Mac, Chrome OS, Linxux, Google. Stylish design exactly matches your Macbook, MacBook Air / Pro, iMac, PC, surface pro, smartphone, laptop or desktop as the side external wireless numeric keypad. You should put in 2xAAA batteries(not included).