This brand new, sealed Microsoft Comfort Optical Mouse 3000 is the perfect addition to any computer setup. With a maximum DPI of 1000, this standard mouse in silver color has programmable buttons, an ergonomic design, a thumb button, adjustable DPI, a scroll wheel, LED lighting, side-to-side scrolling, and 4-way scrolling. It is a wired mouse that connects via USB and is made in China. The tracking method is optical and it has 4 buttons. This mouse is ideal for those who need a reliable and efficient mouse for their daily use.