Soft FX Uncorded 33 Db Earplugs 200 Pair/BoxE A R Soft FX Shaped Uncorded Earplugs. 33 dB. Sold 200 Pair Box. The Best NRR. The Best Fit. And the Best Price. You cant get better. E A R soft FX shaped earplugs fit the ear canal more effectively to help provide an NRR 33 dB the best protection of any earplug. Made of a custom polyurethane foam formulation for slow recovery and increased softness in the ear canal. Uncorded. Manufacturer: E A R Product Name: Soft FX Uncorded 33 dB Model: EAR312