Sonis® 3 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 36.
- High attenuation large cup 112-117dB.
- Extreme industrial noise.
- Paper mills.
- Heavy engineering.
- Colour Coding for easy selection.