Sonis® Compact Helmet Mounted Ear Defenders.
The Sonis® range of ear defenders have been designed by the JSP R&D team. Working with a leading UK acoustic engineering research facility they have developed an ear defender range that peaks at an unbeaten 37 SNR.
- SNR 31.
- Medium attenuation small compact cup 107-112dB.
- Substantial industrial noise.
- Construction & Agricultural machinery.
- Colour Coding for easy selection.