Engineered for extreme noise environments, the Sonis® 3 helmet-mounted ear defenders offer the highest level of attenuation in the Sonis® range, with an unbeatable 36dB SNR. Developed by JSP’s R&D specialists in collaboration with a leading UK acoustic research centre, these defenders deliver superior performance without compromising on comfort.

Proven Performance in High-Noise Environments
The Sonis® 3 delivers exceptional protection in environments reaching 111–116dB, making them ideal for use in aircraft operations, quarrying, paper mills, and heavy industrial settings.

Precision Comfort for Extended Wear
Designed with optimal cushion force and surface area, these ear defenders minimise pressure while maximising comfort. Adjustable stainless steel arms allow users to tilt and fine-tune the cup position for a secure, personalised fit throughout the day.

Custom Branding & Identification
To support site security and corporate identity, Sonis® cups can be colour matched and printed with company logos (minimum order quantities apply), helping reduce theft and ensure team-wide compliance.

Hygienic & Maintenance-Friendly
Easy-to-replace sealing rings and optional hygiene kits ensure the Sonis® 3 remains clean, safe, and effective for long-term use—even in demanding industrial conditions.

Seamless Helmet Compatibility
Designed to work with the universal accessory slots on JSP safety helmets, the Sonis® 3 also integrates effortlessly with the JSP Surefit™ visor system for a complete head and face protection setup.

Ideal For:

• Aircraft maintenance and runway operations
• Quarrying and aggregate handling
• High-decibel manufacturing environments
• Heavy-duty engineering and fabrication
• Paper and pulp processing

These defenders are colour-coded in red for high-attenuation identification—making compliance checks fast and foolproof on busy worksites.