This is a Howard Leight Earmuff known as the Impact Sport, model R-02525.
The Impact enhances user awareness through advanced sound amplification technology. It allows wearers to hear important communication - other co-workers" alarms and warning signals - at a safely amplified level. Positioned microphones provide more natural" directional hearing. Through an advanced response technology" Impact reverts to passive earmuff mode when noise reaches 82 dB or above.
Features:
Amplifies Ambient Sound
Reverts to Passive Hearing Protector When Noise Reaches 82 dB
Stereo Microphones