Multi-use plugs fuse great noise protection performance with all-day wearing comfort. Patented SoftFlange™ design securely seals off your ear canal without subjecting you to unpleasant pressure. FlexiFirm® stem core simplifies insertion and removal. Detachable fabric cord provides extra versatility. Blue/White. Corded/Cordless Pair: Corded; Shape: Flanged; Material(s): Molded Rubberized Foam; Noise Reduction Rate (NRR): 27 dB.