Microsoft Explorer 2.4GHz Wireless BlueTrack Mini Mouse for $14.95 Shipped

Microsoft Explorer 2.4GHz Wireless BlueTrack Mini Mouse for $14.95 shipped.  Here is a screenshot for reference.  Alternatively, it is available here for $18.10 with free shipping on orders over $25.  This mouse features BlueTrack Technology which claims to track better on more surfaces, along with a 30-ft wireless range.  It usually goes for about $29.