Logitech N305 Wireless Keypad is a sturdy little number pad with a three-year battery life and tiny, stay-put wireless receiver that lets you run numbers like a pro - wherever and whenever. The extended battery life means you won't spend your time tracking down new batteries. An indicator light helps you keep an eye on your charge level.
This product works great.
I love this keypad! You can call up an excel spreadsheet, the MS calculator and switch between applications with the touch of a button. The unifying receiver works with my Logitech Marathon Mouse and is easy enough to carry on trips. Logitech has done it again!
Great as a num pad12/8/2010
It does what I need, and is great that it only uses one USB for it and the mouse. I could not get the software to work for reprogramming the top three buttons, but don't really care about that. Using Win7