Both the Microsoft Explorer Mini Mouse and the Microsoft Explorer Mouse (for desktop PCs) are available at Amazon. The difference between the 2 is the Microsoft Explorer Mouse is slightly bigger and rechargeable for desktop PCs, while the Microsoft Explorer Mini Mouse which is perfect for folks who are on the go with their laptops.
The Microsoft Explorer Mini Mouse package come with of course the mouse and USB transceiver as well as a neat cloth carrier and a disc with the Microsoft IntelliPoint 6.3 software. The cloth carrier has the BlueTrack logo on it. The design for the mouse is comfortable with 2 customizable buttons on the left side. The USB transceiver “snaps” into the bottom of the mouse and when it’s snapped in, it turns off the mouse so it doesn't use battery life when not in use.
Microsoft Explorer Mouse features: Easy Charging - The battery status indicator tells you when a quick recharge is needed. The compact, stable recharging base is easy to use. Reliable Wireless on the Go - Microsoft 2.4 GHz wireless and the snap-in mini-transceiver deliver a reliable connection with up to a 30-foot range. Sophisticated Design and Comfort - The glowing blue light effects and comfortable curved surfaces set your mouse apart. Go Anywhere - Microsoft Blue Track Technology combines the power of optical with the precision of laser for remarkable tracking on more surfaces.
More info: Microsoft Hardware