FREE SHIPPING-Same comfort and retention of the S plug ear tip.
-Acoustic filter reduces noise but allows speech/music/surrounding sounds to be heard.
20 dB filter. Filters out damaging noise and still be able to hear speech/music/surrounding sounds. Good for continuous type noise you would be exposed to in: motorcycling, music concerts, sporting events, flying, concentration in noise. Very comfortable to sleep in.
Extra cases available under accessories.