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 37dB SNR.

• Over-moulded headband has a built in comfort area with ventilation
• Headband force 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
• Headband is manufactured from TPE, making it easy to wipe clean, and sealing rings are easy to replace
• Hygiene kits are available for each model
• 37dB SNR
• Red: high attenuation small cup 112 - 117dB
• Suitable for extreme industrial noise, aircraft, quarrying, paper mills and heavy engineering