Delta Plus UltraSonic Earmuffs 29NRR Oakley Prizm Smoke Gray and Hi-Def Yellow

Smoke Gray and Hi-Def Yellow - a tough protective case

and are stamped for industrial and military safety compliance

making it possible to integrate additional lens colors or replace damaged lenses

The rimless lens has MCR Safety's Duramass scratch-resistant hard coating and wraps around for excellent side protection

Delta Plus UltraSonic Earmuffs 29NRR Oakley Prizm Smoke Gray and Hi-Def YellowDelta Plus UltraSonic earmuff is our latest high performance muff with a stainless steel headband. This model has been designed to provide excellent full spectrum attenuation, as well as superb low frequency attenuation. UltraSonic uses a fork type headband for even distribution of pressure, and improved balance required for extra deep ear cups. Features: 29 dB NRR from certified US laboratory to ANSI S3. 19 1974 and 34 dB SNR tested to CE EN 352 1.