Rytaki Upgraded Version Bluetooth Numeric Keypad, Portable Wireless 22 Keys External Number Pad for Laptop, Tablet, Notebook, PC, Desktop and More

Energy saving The numeric keypad automatically enters standby mode, energy saving, extended battery life; any key to wake up the numeric keypad. Power supply by 1 x AAA battery (not included). LED Light Display Status - Bluetooth connection: please turn on the power at the bottom of the keyboard, the red light will light up 3s, press the TBA 3s Bluetooth connection button, the green light will flash and quickly switch to match mode. - Low voltage state: when the working voltage is less than 0.9V, the red light flashes. -Numlock: green In order to extend the battery life, when you do not use the keyboard for a long time, please turn off the device. How to connect? 1) Insert a AAA battery and turn on/off the button to power the keyboard. 2) Press the "Bluetooth" button for 3 seconds until the LED light flashes. 3) Run the Bluetooth Setup Wizard on your computer or phone and select "Bluetooth keypad" from the list. 4) When the Bluetooth setup wizard page indicates that the "Bluetooth keypad" is connected correctly, you can type numbers in the Excel sheet using this keyboard to see if it is really successful. Please note - "↑ ← ↓ →", Home, End, Ins, Delete, PgUp and PgDn buttons work with Windows XP/Vista/7/8/10, but NOT with Mac O.S. - The "Num Lock" button works with Windows XP/Vista/7/8/10, but NOT with Mac O.S. Tips - This bluetooth keyboard just a bluetooth connection, no USB adapter needed.