Allen Company Light Weight Low Profile Sound Sensor Hearing Protection, NRR26 Quality tested and ensured for maximum durability Designed with only the toughest, roughest users in mind Comfort and performance come hand in hand with Allen com Outperforms electronic protection Extremely light weight, only 1.7 oz. Adjustable headband also folds to fit into pocket, extra foam ear cushions included Allows easy conversation without "echo" effect Filters out most damaging sound frequncies, NRR of 26