Axil's XP Series Defender Ear Plugs features a special sound valve that can be opened and closed by a small switch. The switch simply allows you to change the plugs into full defense mode, while making the passive attenuation up to NRR 18 dB and the impulse reduction up to 33 dB. This makes it so you can seamlessly go from protecting your hearing to hearing what is going on around you clearly. This model has a green finish.
