Morro maker Microsoft has just announced a new BlueTrack tracking technology-equipped rodent, the Wireless Mobile Mouse 4000. The new wire-free mouse makes use of 2.4GHz WiFi technology, comes in several color options - graphite, white, teal blue, berry pink and lime green, has four customizable buttons, provides a 4-way scrolling, and is paired up with a tiny, tiny USB receiver.

The Wireless Mobile Mouse 4000 is offered with a three-year warranty and is scheduled to ship in August priced at $39.95.