3D spectacles; Amplifiers; Audio-video receivers; Batteries; Battery chargers; Cabinets for loudspeakers; Computer mouse; Converters for electric plugs; Earphones; Headphones; Loudspeakers; Microphones; Portable media players; Radio transmitters; Rechargeable electric batteries; Sunglasses; Vehicle tracking devices comprised of cellular radio modules, computer software and computer hardware, sensors, transmitters, receivers and global positioning satellite receivers, all for use in connection...