Antimicrobial antimicrobial material prevents the growth of harmful bacteria and germs and can be cleaned with soap and water or disinfectants Waterproof design, the ADESA mouse W3 has a waterproof design in which moisture or liquids cannot penetrate due to a sealed housing which protects the internal components from any damage Magnetic scroll wheel, with 4 built-in magnets inside the scroll wheel, scrolling has never been smoother 1000 DPI enhanced optical engine, the optical sensor technology keeps the device precisely on point and lets you work on most glass, wood, marble and leather surfaces without a mouse pad