This ensures maximum high-frequency noise attenuation, but still allows easy understanding of speech and signals. In contrast, the acoustic coupling between the inner and the mezhkorpusnoy cave ensures maximum low-frequency noise attenuation. Effective protection and comfort - these are the main distinguishing features of the Optime III headphones. Neon coloured body - high visibility - for workers who need ear protection and still highly visible - road construction sites, air ports and other high risk areas.
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