Etymotic ER-Damper5Pack - Dampers for ER Products 5 Pairs: Amazon.de: Electronics & Photo
Etymotic, a Lucid Audio Company - What goes into an ER4 earphone? Take a look for yourself! - Balanced Armature Driver (speaker) - Braided Cable for reduced friction - Green Filter https://www.etymotic.com/consumer/earphones/er4-micropro-earphones-373 ...
Individual silicone earplug worn at ear with Etymotic Research Filter-element ER-25. Getragen am linken Ohr in einer Maßgefertigten Otoplastik aus Silikon, Farbmischung Blau/Schwarz, Halb-Concha Weitere Hinweise ELACIN (R) ER-25 - Gehörschutz Getragen