Professional-Quality Hearing Protection (23dB NRR)
Environmental microphones for level-dependent hearing protection and ambient listening.
3.5 mm listen-only stereo input for connection to external devices (e.g. cell phone, two-way radio, Ipod).
You know wearing hearing protection in noisy environments is important for worker safety, but sometimes the ability to hear alarms and vehicles and effectively communicate with other workers can be equally important.
The ProTac III Headset utilizes sound limiting environmental microphones to monitor the surrounding environment, and when hazardous noises are present, the electronic circuit in the headset limits the speaker volume to 82 dBA.
*U.S. EPA specifies the NRR as the measure of hearing protector noise reduction. However, 3M makes no warranties as to the suitability of the NRR for this purpose. 3M strongly recommends personal fit testing of hearing protectors. Research suggests that users may receive less noise reduction than indicated by the attenuation label value(s) on the packaging due to variation in fit, fitting skill, and motivation of the user. Refer to applicable regulations or guidance on how to adjust attenuation label values. It is recommended that the NRR be reduced by 50% to better estimate typical protection.