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UltraSonic 29dB NRR Description
Elvex UltraSonic earmuff is a high performance earmuff with a Noise Reduction Rating of 29 dB. This earmuff has been designed to provide excellent full spectrum attenuation, as well as superb low frequency attenuation. Ultrasonic uses a fork style headband for even distribution of the pressure, and improved balance required for extra deep ear cups.

Specifications:

- 29 dB NRR from certified US laboratory ANSI S3.19-1974
- 34 dB SNR as tested by certified European laboratory to CE EN-352-1
- Superb full spectrum and low frequency attenuation
- Extra wide ear cushions for highest comfort
- Soft padded headband with low force
- Steel headband tolerates temperature extremes
- Solid construction
- You get the ultimate performance and comfort with this muff