Developed in conjunction with Etymotic, Vic Firth Earplugs are configured to replicate the natural response of the ear canal so that sound is reproduced exactly as the ear would hear it, only quieter. Clarity of speech and richness of music are preserved rather than muffled. These earplugs provide excellent sound reduction across all frequencies. Heavy-duty neck cord and carrying case included. These earplugs give a 12db sound reduction across all frequencies (when used as directed).