I had found the following lists of wireless mouse compatibled with windows 7.
Microsoft® Wireless Mobile Mouse 6000
Microsoft® Wireless Mouse 5000
Black Microsoft Arc Laser Mouse
Microsoft Wireless Notebook Presenter Mouse 8000
Work on Virtually Any Surface:
Microsoft Explorer Mouse
Microsoft Explorer Mini Mouse
You can go to buy.com or bestbuy.com to buy the cheap wireless mouse.
Microsoft® Wireless Mobile Mouse 6000
Microsoft® Wireless Mouse 5000
Black Microsoft Arc Laser Mouse
Microsoft Wireless Notebook Presenter Mouse 8000
Work on Virtually Any Surface:
Microsoft Explorer Mouse
Microsoft Explorer Mini Mouse
You can go to buy.com or bestbuy.com to buy the cheap wireless mouse.