These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System
Y-Harness for mounting a boom microphone to the left earcup and enabling connection to a PTT adapter for two-way radio communication
These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E A Rfit™ Validation System
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