AXIL X30i Ear Plugs provide instant sound control for both continuous and impulse noise with a switchable design that adapts to your surroundings in real-time. X30i Ear Plugs feature a valve that opens and closes with a simple toggle switch that lets you transition between hearing and protection or hearing protection only. In closed mode, they protect against continuous noise. In open mode, they protect against impulse noise while allowing you to hear your surroundings. They provide up to 25dB single number rating with the included foam tips; up to 21dB single number rating with included silicone tips. Includes carry case and 5 sets of interchangeable ear tips. Valve opens and closes to provide hearing protection against continuous noise and impulse noise Open mode protects against impulse noise while allowing you to hear your surroundings Closed model protects against continuous noise Provides up to 25dB SNR (single number rating) with included foam tips Concha lock secures the Ear Plugs in your ears Includes carry case and 5 sets of interchangeable foam and silicone ear tips