Happy Ears are CE Certified to reduce volume 25 dB. More importantly for motorcyclists, no earplug has been certified to attenuate noise more evenly across frequencies. Don’t be fooled by expensive filters or bogus hi-fi hype, Happy Ears reduce volume from irritating wind and engine noise by 25 dB, but the sound of traffic and in helmet phone calls, or music, is the most natural possible…Simple Swedish design at its best!