The GETT PrimeMouse delivers ergonomic functionality with two mouse buttons and 3 scroll buttons. Symmetrical design makes the mouse perfect for ambidextrous use. The PrimeMouse is also fully dust and waterproof thanks to its silicone housing. Other highlights: - Optical sensor - Silicone cap to protect the USB port - Electromagnetic Compatibility (EMC) in accordance with EN 60601-1-2 Edition 4