As stylish as the SureTrack Any Surface Bluetooth Mouse is, what really sets it apart is the technology inside. The high-definition laser sensor allows it to track anywhere you work-even on glass. What's more, the SureTrack Mouse connects to your Ultrabook, MacBook Air or laptop without monopolizing a valuable USB port because it connects via Bluetooth . For laptops without Bluetooth, users can connect via a Bluetooth 4 dongle (not included).