Binoculars; Biomicroscopes; Headsets; Oculars; Smartglasses; Spyglasses; Electron microscopes; Eyewear for pets; Headphones in the form of headbands; Magnifying lenses; Motorcycle helmet visors; Protective eyewear; Protective eyewear for medical purposes; Theatre glasses; Video projectors; Virtual reality goggles; Virtual reality headsets adapted for use in playing video games