Computers; Computer mouse; Notebook computers; Downloadable computer software for use in adjusting device parameters, lighting and image display, customizing input signals; Mouse pads; Laptop computers; Covers for tablet computers; Covers for computer keyboards; Computer keyboards; Computer network routers; Headphones; Multimedia projectors; Video screens; Stands adapted for laptops; Bags adapted for laptops; Microphones; Headsets for use with computers; Computer peripheral devices