Unamplified music (drums, brass etc) can produce noises levels up to 100dB; amplified music at festivals, concerts or clubs can reach 130dB. Permanent hearing damage can occur from 85dB so it is essential always to use hearing protection. Developed over 20 years by leading experts Auritech MUSIC Hearing Protectors are superior to traditional foam, wax or silicone earplugs. The precision-tuned, patented ceramic sound filters ensure maximum protection against dangerous levels of noise from loud music. Filtration reduces volume but does not deform the sound and lets you listen clearly to a surrounding conversation - ideal for all music lovers. Auritech Music Hearing Protectors are precisely tuned for optimum attenuation at the frequencies required by live music lovers.The ceramic filter is frequency-selective, so allows you to hear normal conversation and relevant background sounds, so you can carry on as normal, hardly noticing you are wearing hearing protectors. Constructed from silicone-free, hypoallergenic thermoplastic. Washable, re-usable and extremely comfortable.The independently measured mean sound attenuation (EN352-2:2001) is 28.5db at the higher (most damaging) frequencies.