The Sonis® range has been stylishly designed with a traffic light colour code for easy identification - from the green Sonis® 1 for low level noise moving through to the red Sonis® 3 for use in more extreme environments. Materials have been chosen for both performance and comfort for extended periods of use. 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 36dB SNR.

• The force the helmet adaptor applies and the cushion surface area work together to provide optimum cushion pressure and comfort
• Adjustable steel arms facilitate even distribution of pressure the wearer can tilt and adjust the position of the earcup for optimum comfort and fit
• Cushion materials have been carefully selected to generate a perfect seal
• Sealing rings are easy to replace
• Hygiene kits are available for each model
• 26dB SNR
• Attenuation: H = 32, M = 23, L = 15
• Green: low attenuation small cup 80 - 106dB
• Suitable for moderate industrial noise, workshops, printing works, landscaping or leisure activities