Setting Smart Volume Control - Default disabled
Smart Volume Control automatically changes the level of the speaker volume based on the level of the environmental noise. When it is disabled, volume is controlled manually. Rotate the Jog Dial until you hear the voice prompt, “Smart volume control”. By tapping the Phone Button, it will lead you to the level adjustment mode. You can enable it by setting the sensitivity to low, medium, or high. Smart Volume Control responds to smaller environmental noises as the sensitivity level becomes higher.