The M36 is designed for the serious boater with 6 watts of power for further communications range. The floating handheld comes with Clear Voice ensuring clear radio conversation and Voice Boost that turns the volume to full power with a touch of a button. In marine environments there are many sources of noise that can affect the quality of your communications, such as engine noise, breaking surf and more. The M36 automatically adjusts the outgoing voice and the incoming audio to compensate for the ambient noise level: whether you're in a loud environment or in a quiet area, the M36 ensures clear, loud audio. When you need an instant “boost” in the volume, a simple push of the “LOUD” button gives you full volume immediately. In addition, holding the “LOUD” button mutes the audio output.