Because Mack's are moldable

About The Peltor HY220 Hygiene Kit

our earplugs stay put

one in eight children suffers permanent damage to their hearing

For general and industrial use

ER4XR Extended Response Earphone upsell_hellberg-secure-s2h-yellow-headband-earmuff-slc8029db-class-5 Because Mack's are moldableER4XR is the highest performing single driver in ear monitor. The IEM shells are made of anodized aluminum, CNC machined with extremely tight tolerances. Using a single Balanced Armature (BA) driver allows for extremely accurate IEM without the added complexity of crossovers, and helps keep the aluminum body small and slim. The included high quality user replaceable cable is reinforced and twisted, to improve longevity and durability. Etymotic IEMs