Dual mode earplugs that protect wearers from noise and, with a quick flip, also allow better communication when needed. Flip cap allows user to easily switch from a closed position (NRR 24 dB) for protection from continuous noise, to an open position (NRR 4 dB) to communicate or hear. Triple flange design provides maximum comfort for all day wear. Can be easily washed and reused. Includes Pocket-Pak® carrying case and optional cloth cord. PVC-free. 4 Boxes/case.