Replacement Pods for E-A-Rflex™ Hearing Protector 350-1001. - Comfortable soft foam - Soft foam replacement tip for use only with E-A-Rflex™ banded hearing protector. Not for use without band. *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation™.