MP3 And Acoustic Filter Fit The same Custom Earpiece.
You can now get a Custom Earpiece that fits MP3 In-Ear Earphone and Acoustic Filters.
When you are listening to your MP3 Player use your custom tip for In-Ear Earphones.
When you are at concerts, work, loud environment, use the acoustic filter to protect your hearing.
This mould is available in Six Materials:
Hearing Professionals Ultra Carved Hearing Professionals Ultra Carved 
