3D spectacles; Earphones; Eyeglasses; Microphones; Access control and alarm monitoring systems; Cabinets for loudspeakers; Chargers for electric batteries; Data cables; Data processing equipment, namely, couplers; Digital audio players; Electric door bells; Electric sockets; Electronic pens; MP3 players; MP4 players; Portable DVD players; Portable media players; Protective covers for smartphones; Tablet computers; Videodisc players