PERFECTPRO UBOX 100 Mode D'emploi page 10

Loudness
When the radio is switched on, press the Loudness button
to get compensation on lower and higher frequency.
The effect will be more audible when the radio is in
lower volume level. The display will show "LOUDNESS"
when Loudness function is applied. To turn off the
loudness function, press the Loudness button again. The
"LOUDNESS" indicator will not be shown anymore.
Tone control
You can set up a custom Treble, Middle and Bass setting
to your liking.
1. Make sure your radio is turned on. Press and hold the
Volume control knob to enter the "TREBLE" adjustment
mode.
2. Rotate the Volume control knob until the desired level
(between -10 and +10) is displayed. The sound will
change as you adjust the level. Press the Volume
control knob to confirm the setting. You will enter the
"MIDDLE" adjustment mode.
3. Rotate the Volume control knob until the desired level
(between -10 and +10) is displayed. Press the Volume
control knob to confirm the setting. You will enter the
"BASS" adjustment mode.
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4. Rotate the Volume control knob until the desired level
(between -10 and +10) is displayed. Press the Volume
control knob to confirm your setting.
SAFETY AND COURTESY NOTE:
To prevent possible hearing damage, do not listen at high
volume levels for long periods or put your ears too close
to the speaker. Please use the volume level responsibly
with respectable consideration of the situation and other
people or animals in the vicinity.