![ACS PRO27 Hearing Protection Filter](https://cdn.prod.website-files.com/61888352887e823c929678c8/6542ec2de4685310670c3e98_pro-27-21.jpg)
Exceptional attenuation in dangerously loud high frequency environments.
Popular with sound engineers, event staff and seriously loud amplified musicians.
Note: PRO27 filters and ear moulds are not interchangeable with other filters and ear moulds in the PRO range.