Motorola RMN5139 3M Peltor MT Series Hard-Hat Attached Headset With Direct Radio Connect
Model Number:  RMN5139
3M™ Peltor™ two-way communication headsets are designed for industrial users working in high noise environments. This MT™ Series hard-hat attached headset incorporates 3M Peltor's technology in both earcup design and electronics to offer hearing protection, durability and comfort.
This versatile headset connects directly to your radio and features dual-ear speakers, boom microphone, and on-ear cup push-to talk. It has a Noise Reduction Rating of 21 db.