Apparatus for recording, transmission or reproduction of sound, image and data, namely, microphones, loudspeakers, headphones, headsets for use with microphones, speakers, conference systems, telephones and computers, telecommunications apparatus and telecommunications installations comprised of analog and digital transmitters of audio signals, video signals and data signals, communication headsets and headphones; pre-recorded carriers, namely, compact discs, floppy disks, DVDs, videos, USB f...

Electric, electronic and optical measuring, signaling and checking/supervision apparatus and instruments included in this class, in particular electric apparatus and instruments for electro-acoustics and parts therefore, namely, ultrasonic transproducers, ultrasonic arrays, amplifiers, and modulators; apparatus and instruments for recording and reproduction of audio signals and parts thereof, included in this class; radio transmitters, receiving apparatus, in particular high frequency audio r...

line of communications devices, namely headsets, earpieces, transmitters, receivers, speakers, electronic hardware, software for the operation of electronic hardware communications devices and accessories, namely interfaces, connectors, and carrying cases, for use with cellular, wireless, wired, computer, radio personal data assistant and telephone voice communication systems