The T2 Thunder® Earmuff offers top-of-the-line protection and comfort. Incorporating the patented Air Flow Control technology for optimal protection, the dielectric construction is suitable for all workplaces, especially electrical environments. The headband features uniform pressure for all head sizes, providing better comfort for long-term wear, inner-ventilation minimizes pressure on the head, and it can withstand rough treatment in the workplace. The quick-click height adjustment remains fixed during use and the snap-in ear cushions make replacement quick and easy. The T2 Thunder® Earmuff has a NRR rating of 28. Sold in a case of 10 earmuffs.