With a choice of colors, the Lenovo 540 USB-C Wireless Mouse is perfect to enhance your productivity anywhere, while complementing your on-the-go lifestyle. The convenient wireless UBS-C receiver provides stable plug-and-play connectivity and lets you pair your ultrabook with up to eight devices. With its long battery life, precise optical sensor, and up to 2400 on-the-fly DPI adjustment, this pocket-friendly mouse punches way above its weight.Lenovo 540. Form factor: Ambidextrous. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 2400 DPI, Buttons type: Pressed buttons, Buttons quantity: 4, Scroll type: Wheel. Laser colour: Red. Power source: Batteries. Product colour: Grey