Sound transmitting apparatus; Transmitting apparatus; Wireless transmitting and receiving equipment; Electronic units for transmitting audio signals; Apparatus and instruments for transmitting data; Apparatus and instruments for transmitting sound; Personal headphones for sound transmitting apparatuses; Personal headphones for use with sound transmitting systems; Sound reproducing equipment; Sound reproducing apparatus; Portable sound reproducing apparatus; Apparatus and instruments for reproducing of sound; Apparatus and instruments for reproducing of data; Acoustic membranes used in sound recording or reproducing apparatus; Apparatus and instruments for processing sound; Apparatus for the processing of sound; Apparatus for data processing; Recording apparatus; Sound recordings; Audio recordings; Audio recording apparatus; Audio recording equipment; Sound recording apparatus; Apparatus and instruments for recording sound; Apparatus and instruments for recording of images; Apparatus and instruments for recording of data; Apparatus and instruments for processing data; Computer software; Downloadable computer software; Digital signal processors; Digital signal processing apparatus; Digital voice signal processors; Electronic audio signal processors for compensating sound distortion in speakers; Signal processors for audio speakers; Digital sound processors

Scientific and technological services; Scientific and technological design; Industrial analysis services; Industrial analysis and research; Industrial research and analysis; Quality control and authentication services; Software design and development; Product design and development; Design and development of computer hardware; Design and development of computer software; Design and development of computer hardware and software; Advisory services relating to computer systems design; Design and testing of new products; Design services relating to data processing tools; Designing of electronic systems; Designing of electrical systems; Development and design of digital sound and image carriers; Engineering and computer-aided engineering services; Product design; Product development; Product development consultation; Product development for others; Product research and development; Professional consultancy relating to industrial design; Development of hardware for digital signal processing; Design of hardware for digital signal processing; Design of software for digital signal processing; Development of software for digital signal processing