Made of self-adjusting foam with a tapered shape for increased comfort. Breakaway cord prevents loss and protects user in case of machine entanglement. Corded/Cordless: Uncorded; Shape: Cylindrical; Material(s): Foam; Noise Reduction Rate (NRR): 33 dB.
Seal the earcanal with soft, slow-recovery foam for excellent noise reduction and comfort. Test compatible with 3M E-A-Rfit validation system.