Amazon has the Microsoft Arc Wireless Laser Mouse in Red, model no. ZJA-00002, for $32.78 with Free Shipping for a limited time.

The Arc Mouse is designed to go with you. Expanded, it’s a sturdy and comfortable full-sized mouse. Folded, it fits perfectly into your bag. It has a scroll wheel for easy navigation, a micro USB transceiver that easily snaps into the bottom of the mouse, a convenient battery status indicator. It features 2.4 GHz wireless with up to 30-foot range, laser tracking, and 4 buttons. It can be used with either Windows (Vista/XP) or Mac (OSX 10.2-10.5).