3M™ E-A-R™ Classic™ Plus Probed Test Plugs 393-2009-50, 50 EA/Case

These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System 50 PR Per Case 3M PSD products are for occupational use only. *The NRR may overestimate the hearing protection provided during typical use. 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 3M is Leading the Advancement of Hearing Conservation™.