Review on Wireless Number Pad: Portable Mini USB 2.4GHz Financial Accounting Numeric Keypad for Excel Data Entry on Laptop, PC, Desktop, Surface Pro, Notebook by Melissa Cunningham

I bought it twice because I forgot the first one at my old job abroad. I think this new one had smoother, softer button presses, which I really liked. I spilled coffee on it and now it sticks sometimes but still works! Until the price shoots up I'll buy it whenever I need it (I tend to lose things or leave things in place). Highly recommended