EXFO FTB-1 - Manual (Page 63)

Setting Up Your Unit
FTB-1 53
Adjusting Microphone and Speaker Volume
To adjust the speaker volume:
1. From the Main Menu, tap System Settings.
2. If necessary, from System Settings, tap Display & Sound.
3. Under Volume, use the slider to adjust the sound of your speaker.
Note: You can also select the Mute check box if you want to quickly turn off the
sound.
Note: You can tap the Audio Mixer button if you want to refine the volume
according to the source of the sound (Master Volume and Wave controls).
4. Tap to return to the Mini Toolbox window.