Safety Ear Muffs Hearing Protector Industrial Shooting Ear Protection with Adjustable Size Padded Head Band The cover made of ABS material, excellent in impact and heat resistance, low temperature resistance, chemical resistance as well as electrical properties, make the earmuffs tenacious and wear-resisting. Efficient noise reduction, noise reduction approx.33(SNR). provides protection from most low and medium levels of hazardous noise. Double adjustable plastic headband, the ear cups have been designed for greater comfort, with generously cushioned padding headband and a shape that fits easily over any sized head or ears. Perfect for industries, construction work, manufacturing, oil drilling work and shooting, hunting etc. outdoor activities and for kids with autism issues. It can also be used simply for sleeping or studying. This special earmuff can improve your sleeping quality, protect your ears from hurting by too noisy sound, and keep you focused on the things you are doing without interruption from the outside world. WARRANTY - 100% satisfaction and a 60 days money back guarantee.