Reddit reviews Number Pad, N016 Jelly Comb 22 Keys Wireless USB Multi-Function Numeric Keypad Keyboard with 2.4G Mini USB Receiver for Laptop Desktop PC Notebook - Black

PlUG-and-PLAY device: You just plug the receiver into a USB port and start crunching numbers right awayNumeric keypad supports NumLock, ESC, Tab, Delete etc. With shortcut key which can open the computer calculator directlyADVANCED 2.4 GHz WIRELESS: You’ll enjoy the reliability of a cord plus cordless convenience and freedom—fast data transmission, virtually no delays or dropouts. Allows the keypad to function up to 33' away from the receiver by establishing cordless workspace with standard USB interfaceUSER FRIENDLY: Battery indicator light lets you know when the keypad's AAA battery is running low. Conveniently located direction control keys can be used as joystick control, allowing you to feel the thrill of playing game using a wireless deviceCOMPATIBILITY: Works with PC and desktop computers that have Windows 2000 / XP / Vista / 7 / 8 / 10 operating systems, Numeric keypad is not fully compatible with Mac system. (Function keys do not work, while number keys part works fine. Because Apple doesn't support external keyboards with function keys)