OPSMEN EARMOR M31 MOD4 Tactical Headphones Military Noise Canceling Earmuffs October 15, 2023 admin OPSMEN EARMOR Tactical Headphones M31 MOD4 Noise Canceling Earmuffs Military Anti-Noisy Shooting Earphone. M31 is not suitable for PTT connection communication. Unable to Connect Microphone. It can en... Read More