Optime III is a high-performance earmuff designed for extremely noisy environments. It uses advanced double-casing technology to minimise resonance in the outer shell, delivering excellent high-frequency noise reduction. Despite its powerful muffling capabilities, speech and warning signals remain clear and easy to understand. An acoustic connection between the inner chamber and the space between the casings enhances low-frequency sound reduction, ensuring balanced protection across the full sound spectrum. The broad sealing rings are filled with soft plastic foam, offering a comfortable fit with low contact pressure, making them suitable for long periods of use. Optime III combines effective noise protection with outstanding comfort, making it ideal for demanding industrial or construction settings. It is certified to EN 352:2020 standards with a Single Number Rating (SNR) of 34.