Howard Leight by Honeywell.
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Impact earmuffs with excellent sound amplification and best attenuation on the market: SNR 33.
• Amplifies low volume sound and conversation (4 times as loud).
• Easy to use: just one volume control button.
• Includes 2 AAA batteries.
• Can be connected to MP3 players and smartphones.
• Ideal for recreational and professional shooting, both indoors and outdoors.
• Patented Air Flow Control™ technology for optimum attenuation across all frequencies.