Product description Color: black 1. [Slim, Light and Ready to Travel]: Ultra-slim and lightweight, goes anywhere without the weight or bulk of traditional mice. Whats more, you can snap it flat and easily slip it in your back pocket or bag for travel. 2. [Design, Refined]: The Mouse features an audible, satisfying snap. Simply snap the Arc Mouse into its curved position to power up. Snap again to flatten and power down. The overall design is optimized for the most comfortable, natural interaction. 3. [Intuitive Interactions]: lets you scroll both vertically and horizontally for easier, more intuitive navigation. Plus, enjoy precise tracking, with optimized left and right click. 4. [Beautifully Crafted]: features a slim, smooth, unobtrusive design thats easy on the eyes and fits beautifully within your workspace. From scroll plane to tail, the Mouse is soft to the touch and meticulously crafted to sit comfortably in your hand. 5.Ultra-thin wireless folding mouseDimensions: 131*55*15mm. Battery: 2 AAA alkaline batteries (not included). Quantity: 1pc Note:Manual measurement, there may be 1-2cm\/1-3g error, which is not a quality problem. Due to different screen displPXCL, there may be a color difference between the real object and the picture, and the main picture shall prevail.