Best Buy has Microsoft 3500 & 4000 wireless mouse ea. for $9.99

Best buy has this Microsoft 4000 wireless mouse on sale for $9.99. Also the 3500 model is the same price.
4000-
Features
BlueTrack and optical technologies
Ensure precise tracking on a wide range of surfaces.
Tilting scroll wheel
Allows 4-way scrolling, so you can easily navigate the Web, documents and more.
4 customizable buttons
Enable simple personalization.
Ambidextrous design
Permits comfortable left- or right-handed use.
Compact size
Offers easy portability.
https://www.bestbuy.com/site/micr…Id=9401685
3500-
https://www.bestbuy.com/site/micr…Id=1805526