I have an HP pavilion DM 1 11.6" laptop which is highly mobile. I can't get on with using the pad for some things and wanted a mouse that works with Windows 7 and was also wireless. Jerry fits the bill beautifully! It works by inserting a slim dongle into a USB port - and away you go!. When not in use, the dongle slots neatly into the underside of the mouse for storage. I would highly recommend that you get into the habit of doing this every time you are not working on your computer, otherwise the battery will run out in a matter of days - as happened with me, first time! It is ergonomically designed and is very comfortable to use, especially as I have quite small hands. It gets the thumbs up from me!HP VK479AA#ABB Wireless Optical Mobile Mouse - Jerry