Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable media, computer software, blank digital or analogue recording and storage media; mechanisms for coin operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers masks, ear plugs for divers, nose clips for divers and swimmers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus; multi-function touch buttons; push button switches (electrical -); touch pads; tone pads; sound recordings and playing; sound recording and playing apparatus; portable sound recording and playing apparatus; instruments for recording and playing sound; apparatus for recording and playing sound; audio recordings and playing; audio recording and playing equipment; audio recording and playing apparatus; sound recorders; sound reproducing equipment; sound reproducing apparatus; apparatus for reproduction of sound and training software