3M 7000052879 | E-A-R 393-2008-50 Polyurethane Ear Plug

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.

Features:

• 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