Phonak Serenity Choice Reusable Hearing Protection for MOTORSPORTS Personal Amplifier Connects to the phone jack

Connects to the phone jack of any standard analog phone line

Built-in automatic shut-off

Serenity Choice™ Work provides an air passage to the ear

The Williams Sound Rechargeable FM ADA compliance kit is great for situations with one presenter and up to four hard of hearing listeners

Phonak Serenity Choice Reusable Hearing Protection for MOTORSPORTS Personal Amplifier Connects to the phone jack70% 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