60 Paia Tappi Orecchie in Schiuma, Tappi Orecchie per Cancellazione del Rumore del Sonno, 32dB NRR, 37d
【Effective Noise Reduction】 --- The ear plugs for sleeping noise cancelling has been professionally tested, the ear plugs for sleeping has 32dB NRR, 37dB SNR of surprisingly high noise reduction level.