Mutes the media volume in one touch but leaves all other volume settings unchanged. Useful if you want to start a video with the volume muted so that you don't disturb other people. When the media is playing, the volume may be adjusted as required. Will unmute if the button is pressed again as long as the volume has not been turned up.

此版本中的新功能：

As per comments. Application has been changed to mute on first press and unmute on second press.