BRAND NEW NEVER OPENED OR ISED == Anker 2.4G Wireless Vertical Ergonomic Optical Mouse for Work, Multi-Device Connectivity, 800/1200 /1600 DPI, 5 Buttons for Laptop, Desktop, PC, MacBook - Black --- Scientific ergonomic design encourages healthy neutral "handshake" wrist and arm positions for smoother movement and less overall strain. 800 / 1200 / 1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces. = In original packaging as delivered by Amazon in manufacturer's shipping box ==Thanks for your interest in our ads here and our 421 ads on Marketplace too. We welcome your inquiry.