Audio-video receivers; Audio interfaces; Audio speakers; Chargers for electric batteries; Cinematographic cameras; Computer memory devices; Computer peripheral devices; Connections for electric lines; Couplings, electric; Data processing equipment, namely, couplers; Disk drives for computers; Electric connectors; Electric and magnetic contacts; Electrical plugs and sockets; Electro-dynamic apparatus for the remote control of signals; Headphones; Interfaces for computers; Plug-in connectors; T...