The Peltor Hi-Viz has a signal colour, giving wearers the added safety of high visibility. For workers who need to protect their hearing and be extra visible - on road construction sites or other high-risk workplaces.Low profile combined with generous internal depth. The collapsible headband ensures that the hearing protector takes up little space even when not in use. Good attenuation, especially at high frequencies. The attenuation properties of the hearing protector afford excellent communication capacity.In accordance with PPE directive 89/686/EEC, and applicable sections of European Standard EN 352.