This is a Radians Electronic Earmuff known as the R3200, model R3200ECS.
Radians manufactures a comprehensive line of quality protective gear to minimize personal exposure to safety hazards. Their mission is to meet the customers' personal protection needs profitably with excellent service and to innovate products that help keep the world safe at work" home" in the woods" and on the range.
Features:
Low Profile Ear Cups
Two Independent Microphones
Adjustable Headband
NRR 23dB