Brand: AOC; Model: GM140; Color: New; After-sales Service: National Warranty; Interface Type: USB; Number of Buttons: 6; Optical Resolution: 2400dpi; Working Mode: Photoelectric; Color Classification: Black Standard Edition Black Upgraded Edition Black business version and white upgrade version; Package type: official standard; Whether to support ergonomics: Yes; Time to market: 2020-08-17; Warranty period: 12 months;
