Elvex UltraSonic high perfomance ear muff has a stainless steel headband and it is a replacement for model number HB-50. The new model has been designed to provide excellent full spectrum attenuation, as well as superb low frequency attenuation. The ultrasonic uses a fork type headband for even distribution of pressure, and an improved balance that is required for extra deep ear cups. There is a 29dB NRR from certified US laboratiory to ANSI S3.19-1974 and 34dB SNR tested to CE EN-352-1. There are extra wide ear cushions on this protection and a soft padded head cushion for the highest comfort with a low force headband that tolerates temperature extremes. The muffs have a lightweight construction and you can get both comfort and performance with this ear protection.
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