Model: Howard Leight Impact Sport R091526 Color: Hunter Green Style: Folding Material: Plastic NRR: 22dB Features of Howard Leight Impact R-01526 Ear Muffs: Sound amplification allows wearers to hear important communication, alarms/warning signals, co-workers voices Directionally placed stereo microphones amplify and enhance sound for more natural hearing Ideal for hearing impaired workers Limits sound amplification to 82dB Automatic shut-off and AUX signal input New easy-access battery compartment