- Optical 3-button mouse for exact sensing and precise control ,- Silent main buttons allow undisturbed and relaxed working without clicking noise ,- Rubberized surface for improved grip and comfort ,- The perfectly symmetrical shape accommodates both left-handed and right-handed users , ,System Requirements: ,- Operating system: Windows 10/8/7/Vista, MAC OS 10.10 or later - Connection: USB-A Plug ,- Connection: Cable ,- Model: Standard Mouse ,- Number of Mouse Buttons: 3 Buttons incl. Scroll Wheel ,- Scroll Function: Scroll Wheel ,- Sensors: Optical ,- Cable Length: 180 cm ,- Width x Depth x Height: 5,8 x 10.3 x 3,7 cm ,- Resolution: 1200 dpi ,- Colour: Black 2 years legal warranty only