OTTO CONNECT SUREFIRE INTERCHANGEABLE INSERTS FOR UPGRADE HURACANE II TO III

SureFire's patented EarLock(R) retaining rings and noise-reducing filters, incorporate SureFire's innovative technology, leader in hearing protection technology. Sounds can pass through and can be heard clearly at safe levels, including speech, while potentially harmful noises are reduced through a patented design incorporating a special noise-reducing filter.

A slide switch allows the user to control the ambient sound level, while maintaining situational awareness. In the open position, Filters allow ambient sounds and conversations to be heard clearly. In high noise environments, Closing the switch increases the effectiveness of noise blocking. Ambient background noise is reduced by 21dB, with up to 40 dB of protection against loud noises.