Performance - 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. Comfort - The over-moulded headband has a built in comfort area with ventilation. The headband force and the cushion surface area work together to provide optimum cushion pressure and comfort. Customisation - Sonis® cups can be coloured to meet a corporate identity. They can also be printed with a company logo for improved brand recognition and to discourage theft. MOQ's apply. Adjustable Steel Arms - To facilitate even distribution of pressure the wearer can tilt and adjust the position of the earcup for optimum comfort and fit. Hygienic - The headband is manufactured from TPE, making it easy to wipe clean. The sealing rings are easy to replace. Hygiene kits are available for each model. Extra Visibility - The Sonis® range is available with extra visibility cups and a reflective headband for added low light protection.