3D spectacles; Chargers for electric batteries; Data cables; Earphones and headphones; Headsets for virtual reality games; Hygienic covers adapted for virtual reality headsets; Spectacle lenses; Spectacles, frames and cases; Unmounted spectacle frames; Virtual reality glasses; Virtual reality goggles; Wearable electronic proximity sensors with embedded contact tracing software for monitoring and alerting of social distances or distance measuring among wearers