For regular music choir caps (custom music), the following filters are available:

- Low - 13db

- Medium - 19db

- Strong - 23 db

- Extreme - 30db

When it comes to Authentic earplugs, there are other filters, namely:

- Low - 9db

- Medium - 15db

- Strong - 19db

- Extreme - 23db

- Ludicrous - 28db

Should you not like the chosen filter, you may have it exchanged free of charge. This can be done by mail, or by stopping by for a free inspection appointment.