The SONIS Ear Defenders have been designed working with a leading UK acoustic engineering facility.
Specifications
- Comfort: The force the Helmet adapter applies and the cushion surface work together to provide optimum cushion pressure and comfort.
- Features: SNR 31dB. Medium attenuation small compact Cup.
- Attenuation Frequency: H =35, M = 28 and Low = 20.
- Use when in range of substantial industrial noise as : Construction, working with Agricultural machinery, Road works, Forestry and Engineering.
- Usage: Construction & agricultural machinery, Roadworks, Forestry, Engineering
- Colour coded for easy selection.