Xmart Volume
 
headphone volume when someone talks to you.
 
White tone HUD Interface
 
Stylish HUD interface but not to confuse with HUD utility windows of other applications
Let Xmart Volume automatically turn down your
Screenshots
Semi-Opaque Window
 
Xmart Volume stays on top for easy access but allows you to see thru what’s underneath.
Advanced Settings
 
Listener: Allows you to select the Mic as default audio-in without accessing System Preference.
 
Level: Opens System Preference for you so you can adjust the Mic input level.
 
Sensitivity: Allows you to adjust how quick Xmart Volume responds to change of external sound level. (Not available in Trial Version).