MOJO Bluetooth Wireless Numeric Keypad Portable Compact NumPad Number Pad Keyboard for phones, smartphones, and tablets 18 key numeric keypad perfect for working with spreadsheets, calculations, etc., Keypad buttons include: 0-9, - , + , / , * , Num Lock, Backspace, Del Wireless connection so you can work easily at your own convenience on your desktop / laptop. Connect with your phone/tablet/laptop/computer by pairing with a 4 or 6 digit passcode. Enter it once, and your number pad should always stay connected. Troubleshooting Tips: Press each button slowly when entering the passcode. Press enter when you are finished. If you cannot pair or forgot the passcode, remove the battery in the keypad, turn Bluetooth off on your device, then install the battery again and turn Bluetooth back on and try pairing again. If your keypad disconnects from your device often, please also consider updating the Bluetooth firmware/software on your phone/tablet/laptop/computer MOJO LLC offers an exclusive manufacturers warranty for 60 days with this keypad. This warranty is exclusive to sales through MOJO only. Purchases made from unauthorized resellers are not eligible for this warranty. Powered by 1 AAA battery (not included)