At 3M, we discover and innovate in nearly every industry to help solve problems around the world.
These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System
Accurate objective data is collated & delivered within 8 seconds
Should not be used as hearing protection
Y-Harness for mounting a boom microphone to the left earcup and enabling connection to a PTT adapter for two-way radio communication