Headphones; Loudspeakers; Megaphones; Microphones; Acoustic membranes; Cabinets for loudspeakers; Decorative magnets; DVD players; Electric installations for the remote control of industrial operations; Electromagnetic coils; Erasing magnets; Height measuring instruments; Horns for loudspeakers; Instruments for measuring length; Magnet clips for attachment to toy cars for display of toy cars as decorative magnets; Magnet plates for laboratory use; Magnets for industrial purposes; Photovoltaic cells; Portable media players; Refrigerator magnets; Sound transmitting apparatus; Video recorders