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Changing the sound volume
On the home screen, turning the switches the “Break-in” message
displayed at the bottom of the screen to “Main speaker”
or “Ear speaker” icons as shown in the Figure on the
right to enable the volume to be changed.
While the main speaker icon is displayed, the volume can be changed with the or the .
While the ear speaker icon is displayed, the volume can be changed with the .
Setting the volume to zero activates silent mode.
The volume can also be changed during a call or on the volume
settings screen in the menu
Break-in call setting display
Turn up
Turn down
Ear speaker icon
Volume knob
Up/down
button
Volume knob
Up/down button
The change in screen when the
volume is changed
Up/down button
Main speaker icon
To talk with better sound
When talking, keep the product approximately 5 cm away from the
mouth.
Talking very close to the product may crack or distort the voice sound
delivered to the counterpart.
The sensitivity of the microphone can be changed from the Menu as
follows:
How to change the microphone sensitivity:
[Menu] > [09
：機能設定
(Utilities)] > [03
：音質設定
(Voice Qualities)] >
[02
：マイク感度
(Mic Sensitivity)]
According to the voice volume, change the quality of voice to one
which is friendly to the counterpart.
