The Sonis® range has been stylishly designed with a traffic light colour code for easy identification. Materials have been chosen for both performance and comfort for extended periods of use. 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. o facilitate even distribution of pressure the wearer can tilt and adjust the position of the earcup for optimum comfort and fit.