Amplifiers; Answering machines; Audio and video receivers; Bells (warning devices); Cables, electric; Electric door bells; Peepholes (magnifying lenses) for doors; Electronic monitoring apparatus, other than for medical use; Image screens; Electric access control apparatus; Encoded cards; Headphones; Locks, electric; Loudspeakers; Personal stereos; Radios; Navigation apparatus for vehicles (on-board computers); Riding helmets; Smoke detectors; Electronic baby monitoring (listening) devices; Walkie-talkies; Video recorders; Electrical connection adapters; Alarm devices (other than for vehicles); Computer keyboards; Electric plugs; Cameras; Closed circuit television surveillance cameras; Television cameras for surveillance; Video surveillance cameras; Video intercom apparatus; Intercom apparatus; Light emitting diode (LED) displays; Light emitting diodes (LED); Telephones incorporating intercommunication systems; Telephone intercom apparatus