Microsoft GMF-00017 Wireless Mobile Mouse 3500 (Geode) for $11.99. Order online for in-store pickup at Best Buy to lock in the price, ensure availability, and save on shipping. Otherwise, shipping is $5.49 for a total of $17.48 shipped. Here is a screenshot for reference. It features ambidextrous design, BlueTrack, 2.4GHz wireless connectivity, nano transceiver, PC and Mac compatibility and operates on a single AA alkaline battery (included). Most places have this wireless mouse in different color for about $21 or more.