Mustang headphone ear protector
Description
• Good noise reduction
No snag band
• 4157EM’s unique adjustable arm tension
• Unique cup design and maximum resistance
• Headphones dB: 25NRR 4155, EM
• Installed cup dB: 20NRR 4157, EM
Standard: ANSI S3.19 – 1974 & EN 352-1
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