This RSM features Noise cancelling providing superior audio by suppressing ambient noise, improving the audio quality to perfect levels. With it’s compact design with a large front & side Push to talk, skid proof design it is a perfect solution such as security, aviation & many other applications. This RSM is equipped with a 3.5mm socket for discreet communication & easily accessible programmable buttons, volume button that ramps up and down make the microphone intuitive to use even in the most demanding conditions.