Klein Tools Cap Style Hard Hat Earmuffs are designed to work with all Klein Tools Safety Helmets and Cap Style Hard Hats, and are intended to provide limited protection from harmful noise. Tested in accordance with ANSI S3.19-1974 standards, the NRR (noise reduction rating) for these earmuffs is 27dB when paired with Klein Tools Cap Style Hard Hats, and 26dB when paired with Klein Tools Safety Helmets. Designed for all-day comfort and effective acoustic seal.

• Earmuffs designed for use with Klein Tools Cap Style Hard Hats and Safety Helmets.
• Noise Reduction Rating (NRR): Cap Style (27dB), Safety Helmet (26dB).
• Soft foam ear cushions for effective acoustic seal and all-day wear.
• Spacious interior for comfortable ear fit.
• Designed with pivot positions on earmuff connector for in-use, stand-by, and storage positions.
• Easy to adjust wire arms for customized fit.
• Durable ABS plastic cup for rugged environments.