These earplugs are designed to maximize sound insulation. They offer the best sound insulation in Silencia history.
By using both polyurethane and silicone earplugs, a sound insulation rating of NRR 54dB has been achieved.
By using only one type of earplug, you can choose the sound insulation level that suits your usage scenario (polyurethane earplug: NRR 32dB, silicone earplug: SNR 27dB).
