ACOUFUN EARFUN ADULT BLACK HELMETS The ACOUFUN EarFun Pro helmets are ideal for protecting the ears in all kinds of activities thanks to their -27 dB attenuation. This level of attenuation has been carefully thought out to protect you while you enjoy your activity. It is also foldable for easy storage. - Use: concerts, music shows, car racing, fireworks, shooting ranges, library, study, hunting. - Attenuation: SNR 27dB. - Contents: 1 helmet and storage bag.