Lightweight and portable — with a redesigned wheel optimized for great scrolling, sculpted ergonomic design, and dongle free Bluetooth connectivity — new Microsoft Surface Mobile Mouse works on virtually any surface thanks to BlueTrack technology. Available in a choice of rich colors, it's the perfect mix or match companion for Surface Go* and Surface Go Signature Type Cover.* Compatibility - Device must support Bluetooth 4.0 or higher (Note: Many Apple and Windows 7 devices do not support Bluetooth 4.0).