Specifications Summary >> Color: Black. With its compact, portable form, the Lenovo 400 USB-C Compact Wireless Mouse is perfect for your on-the-go lifestyle. Its convenient wireless USB-C receiver provides stable plug-and-play connectivity, while enabling you to pair your ultrabook with up to eight devices. Thanks to its red optical sensor and up to 2400 on-the-fly DPI adjustment, precision and accuracy is guaranteed whether you are working on a small or big screen.