Acer U5313W - Volume

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... English
Mute
Choose “On” to turn mute on.
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Choose “Off” to turn mute off.
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Volume
Press the ◄ button to decrease the volume.
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Press the ► button to increase the volume.
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Microphone Volume
Press the ◄ button to decrease the microphone Volume.
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Press the ► button to increase the microphone Volume.
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Volume
Volume
Mute
Volume
Microphone Volume
Off
Select Enter Exit