3D scanners; Cameras; Megaphones; Scanners; Webcams; Body cameras; Body cameras for use by law enforcement, teachers; Car video recorders; Computer cameras; Digital door locks; Digital film scanners; Digital graphic scanners; Digital single-lens reflex (DSLR) cameras; Digital video cameras; Electronically-operated door latches; Hunting binoculars; Motion-activated cameras; Optical or telescopic lens sights; Photographic filters; Speaker microphones; Tablet computer; Teaching robots; Telescopi...