• Model #2550
• NRR=25 dB - tested at NVLAP laboratory
• Very low profile
• Even four point pressure distribution combined with Soft-Seal™ ear cushions provide long lasting comfort and very little squeeze
• Spring stainless steel headbands
• Premium components for long life
• CSA Class A

Attenuation data

Frequency in Hz	125	250	500	1000	2000	3150	4000	6300	8000
Mean (dB) Attenuation	15.4	20.7	29.3	37.3	34.1	36.5	39.6	41.6	39.0
Standard Deviation	2.1	2.1	2.4	3.7	2.3	3.8	3.5	3.6	3.3
NRR=25dB