• High quality mute button for easy use without disturbing people • Left and right hand symmetrical design • Streamlined shape fits the hand and enjoys a comfortable grip • Integrated magnetic adsorption top cover, easy to disassemble and easy to install • Aluminum alloy anti-skid roller, easy to upgrade and operate • The surface is sandblasted and anodized, the texture is upgraded, it is effective in anti-skid and anti-sweat, and the hand feel is excellent. • High-precision sensor, precise positioning of multiple desktops • With 1000DPI photoelectric sensor, it has an excellent surface area and is suitable for desktops with various colors and materials, which can easily meet office and daily needs.