Custom Made from an impression of the users ear, these noise plugs can be supplied as a total block that will naturally attenuate higher frequency noise more than lower frequency noise. Alternatively plugs can be fitted with filters that reduce the attenuation characteristics but allow a user to hear their environment or a work colleague.
What ever environment you work in, these plugs can be manufactured to your own requirements such as high visibility colours - where it can be seen from a distance that the plugs are being worn or a specialist version for the food processing industry.