Microsoft has extended its line of BlueTrack-based devices today with the launch of two new mice as well as its first combo set using the technology. Like its Explorer and Explorer Mini predecessors, the new models promise to work on virtually any surface, from smooth and shiny marble to tough surfaces such as carpet. The Wireless Mobile Mouse 6000 is intended for mobile use, and pairs a blue-laser mouse with a 2.4GHz "nano transceiver," while the full-sized Wireless Mouse 5000 is intended for desktops and has a five-button ambidextrous layout.

Runtime is estimated at up to 10 and 8 months respectively, and each has a proper power switch to both save battery life and prevent the mouse from waking its host computer. Lastly, the Wireless Desktop 3000 combines the regular Wireless Keyboard 3000 with the just-launched Wireless Mouse 5000 to give users a BlueTrack mouse and an RF keyboard without the need for separate USB adapters.

All three products should begin shipping next month, priced at $50 for the Wireless Mouse 6000, $40 for its desktop counterpart, and $70 for the Wireless Desktop 3000 combo.