[ 3D spectacles; Binoculars; Call bells; Computer monitors; Digital door locks; ] Earphones and headphones [ ; Electric door bells; Electrical plugs and sockets; Eye glasses; Face masks for diving; Headphones; IP (Internet protocol) cameras; Portable media players; Protective display screen covers adapted for use with computers, televisions and PC tablets; Smartwatches; Smoke alarms; Spectacle frames; Straps for mobile phones; Sun glasses; Theft alarms; Wearable activity trackers; Wearable co...