The ProtoArc EM01 NL Ergonomic Wireless Trackball Mouse is a sleek and functional device designed for comfort and precision. With a maximum DPI of 1600, this mouse allows for smooth and accurate cursor movement. The ergonomic design, Bluetooth connectivity, and trackball type make it a versatile choice for users looking for a reliable and efficient pointing device. The black and purple color scheme adds a touch of style to this high-quality mouse, making it a great addition to any workstation.