This is a 3M/Peltor Earmuff known as the Tactical Sport, model TAC100-OTH.
Featuring proprietary 3M technology that suppresses harmful gunshot noise while amplifying low-level sounds" the Tactical 100 Electronic Hearing Protector is ideal for both indoor and outdoor shooters and hunters. Adaptive Frequency Response reduces background noise for clearer conversations and hearing of commands.
Features:
Noise Reduction Rating 22 dB
Exceptional Comfort
Low-Profile
Adaptive Frequency Response Reduces Background Noise