Earmuffs are used to protect hearing and reduce noise distractions in a noisy environment. They attenuate loud and harmful noise, without excluding other ambient sounds. The sound level is considerably reduced to promote sustained attention and concentration. Sound reduction of 27dB. The stretchable headband and the pivoting, cushioned ear cups allow a head adjustment for both children and adults. Easy to clean. Comfortable, robust and foldable, they fit into the included pouch for hygienic storage and convenient transport. 1 year warranty. 8+ Months.