Apparatus for transmitting and reproducing sound or images; Audio- and video-receivers; Batteries, electric; Cases for smartphones; Cell phone battery chargers; Data processing equipment, namely, couplers; Digital to analogue converters; Earphone accessories, namely, earphone extension cords; Electric wires and cables; Electrical plugs and sockets; Electronic switchers for audio and video signals; Fibre-optic cables; Network cards; Protective films adapted for smartphones; Rechargeable electr...