This mouse uses a high-quality USB cable with a magnetic ring to improve data transmission performance, plug and play,Optical engine,move more steadily and more accurately,no delay,no frame skip. Special soundless design for the right and left buttons,Suitable for libraries, conference rooms, coffee shops and other occasions. On-The-Fly DPI Switching: 4 Adjustable DPI Switch: 7200, 4800, 2400, 1200 control your own speed freely. Use popular shark fin tail cartoon modeling with 4 colors backlit, excellent grip, light and durable, ergonomic design. USB wired mute mechanical optical Mouse,Made of high quality PVC matte material.