Ключевые слова: black, brown, concept, construction, copy, cutout, decibels, ear, earmuffs, earplugs, environmental, head, health, healthy, hearing, indoors, industrial, inside, isolated, item, life, loud, muffs, noise, noisy, object, one, over, pair, phones, protection, protectors, red, reduction, safety, shop, sound, space, still, studio, symbol, thing, tool, wear, white, work, yellow,