Adjust the TONE and VOLUME buttons to fit the
levels to your own hearing requirements.
Bass
+10db max
15dB
2 - SENDING VOLUME LEVEL ADJUSTMENT
If your voice is quiet or called parties have difficulty
hearing you, you can increase the sending level
volume with the switch located on the upper side.
You can also decrease the sending volume if
required.
Tone and volume adjustement
TONE
Normal
VOLUME
0dB
Min Normal
Treble
+10db max
+30db max
15dB
30dB
Maxi
15
OFF
ON