Acoustic couplers; Audio and video receivers; Battery chargers; Cabinets for loudspeakers; Computer peripheral devices; Couplers (data processing equipment); Plugs, sockets and other contacts (electric connections); Electrical plugs; Electrical sockets; Headphones; Personal stereos; Drying racks (photography); Radiotelephony sets; Shutter releases (photography); Solar batteries; Telephone sets; Television sets; Transmitters of electronic signals