C

Measuring, signaling, and checking in the nature of supervision instruments in the field of loudspeakers and audio systems, namely, instrumentation used to test and measure analog and digital audio signals; apparatus for recording, transmission and reproduction of sound or image; Hardware for data processing; computers; software for mechanical, electrical and acoustical supervision and controlling in the field of loudspeakers and audio systems

Scientific and technological services, namely, scientific research, analysis and testing in the field of loudspeakers and audio systems, and research and design relating thereto; industrial analysis and research services in the field of loudspeakers and audio systems; design and development of hardware and software