3M Peltor`s two-way communication headsets are designed for industrial users working in high noise environments. This MT Series hard hat mount headset incorporates 3M Peltors technology in both earcup design and electronics to offer hearing protection, durability and comfort. This versatile headset also features soft foam earcushions, noise canceling boom microphone, and deep earcup design for all day comfort. Push-to-talk adapter is required. Suitable for heavy equipment operators, airport workers, construction, manufacturing, agriculture or racing, this headset has a NRR of 25 dB.*Requires PTT Adapter PMLN6095.*The NRR may overestimate the hearing protection provided during typical use.