EP10 Sonic Defenders Ultra Max earplugs answer the call providing the highest level of hearing protection made by SureFire an extraordinary Noise Reduction Rating NRR of 30 dB. These fullblock earplugs feature soft memoryfoam Comply Canal Tips that seal in the ear canal blocking out potentially harmful noises and providing allday comfort. They are an excellent choice for industrial tactical recreational and everyday applications where maximum protection against continual noise levels is desired and the ability to hear ambient sounds or conversations is not a priority. For affordable nonelectronic hearing protection thats reusable and provides maximum protection comfort and retention theres no beating EP10 Sonic Defenders Ultra Max.