Camcorders; Headphones; Smartwatches; Audio- and video-receivers; Car video recorders; Cell phones; Computer hardware; Electric navigational instruments; Global positioning system (GPS) apparatus; Mobile telephones; Portable media players; Projection screens; Radio beacon machines and apparatus; Selfie sticks; Set-top boxes; Slide projectors; Smartphones; Tablet computers; Transparency projection apparatus; Tripods for cameras; Video projectors