Unique dual-headband offers better positioning and breathability, and non-deforming outer headband minimizes pressure. Dielectric construction withstands use and abuse while protecting workers in electrical environments. Features patented Air Flow Control technology for optimal attenuation across all frequencies and snap-in ear cushions for easy maintenance. Cap-mounted earmuffs include a pair of adapters for use with most popular hard hats. Tested to ANSI S3.19-1974. Please call for special pricing.