Phonak Serenity Choice Reusable Hearing Protection for MOTORSPORTS Personal Amplifier Serenity Choice™ Work provides an

Serenity Choice™ Work provides an air passage to the ear

Built-in automatic shut-off

Mute buttons

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Phonak Serenity Choice Reusable Hearing Protection for MOTORSPORTS Personal Amplifier Serenity Choice™ Work provides an70% of people exposed to loud noise never or seldom wear hearing protection. Using patented impulse filter technology, the Serenity Choice Morot Sports reduces wind noise to safe levels so you can concentrate on the road. Noise levels in a motorcycle helmet at 100 kmh are typically 95105 dB. This is far above the widely accepted safe noise exposure level of 85 dB, meaning you have between 15 minutes and 2 hours of riding before you risk tinnitus or