OTTO Over-the-Head heavy duty headsets are Mil-Spec and IS/ATEX certified and deliver comfort, reliability and protection. Microphone position can be adjusted by rotating the boom left or right. The headsets offer a certified noise reduction rating (NRR) of 24dB and provide high clarity audio and additional hearing protection necessary for consistent, clear communication in extreme noise environments. Compatible with Motorola ASTRO/SABER Series (MD) Connector ASTRO/SABER Series HT600, MT1000, MTX800, MTX Classic, MTX900, P200 with Motorola adapter NTN5598 ASTRO/SABER with Motorola adapter NTN5664D Certified noise reduction of 24dB Heavy-Duty In-Line PTT Switch Flexible, noise-canceling, boom microphone with replaceable windscreen Comfortable, cloth-covered ear seals Over-the-head and behind-the-head styles Fully rotating boom mic for left or right side positioning Fits Motorola, 6 PIN Hirose Connector Specifications Cable pull from ear cup and mic/PTT, axial: 20 lbs Cable pull from T module, axial: 20 lbs 24 month manufacturer's warranty Microphone sensitivity at 94dB SPL: -37 typical Operating temperature: -30Adeg C to +75Adeg C Storage temperature: -40Adeg C to +85Adeg C Warranty: 3 years Audio Connector: 6 PIN Microphone type: Boom Mic PTT Options: Lapel PTT - In line