The description of iVol - Play With New Friends
Until today, the keyboard and the hotkeys were the only way to set the volume up or down, but iVol offers us a new and fast way to change the volume.
iVol is a lite application that allows you to change the volume with the scroll wheel of the mouse. Just press and move the wheel to change the volume. It's easy.
An small bar will be shown where the cursor is. By that way you'll know the volume level you are setting.
iVol is an excellent alternative to the keyboard if you want to control the volume in a fast and accurate way.