[ 3D spectacles; Antennas; ] Camcorders; Computer peripheral devices; [ Contacts, electric; Earphones and headphones; ] Loudspeaker cabinets; Microphones [ ; Portable media players; Rechargeable batteries; Satellite-aided navigation systems; Stands adapted for mobile phones; Transmitters of electronic signals; Wearable activity trackers; Wireless chargers; Electrical plugs and sockets; Electronic collars to train animals; Magnifying peepholes for doors ]