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The innovative shape with the unique oval earplug in conjunction with the pre-formed stem offer optimum insertion and removal characteristics. This is a hygienic application which does not contact the earplug. These can easily be cleaned subsequently. Optimum wearing comfort, even for extended periods, is ensured by the low contact pressure. The earplug is available in two sizes, to suit most sizes of auditory canal. SNR = 26 dB (H = 26 dB; M = 24 dB; L = 22 dB)