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DISCOVER D312U - Audio Quality Issues; Points for Attention; Usage and Maintenance Precautions

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plugs into the jack perfectly; ensure the mute function is o󰀨.
Q2: A sharp voice in speaker or microphone.
Solution: The volume maybe too loud or the microphone is too close
to your mouth. Please adjust your speaker to a suitable volume and
the microphone in a proper distance.
Q3: Hear some buzz sound when in a call.
Solution: Try to use another USB port. The contact for USB port
might be poor.
7. Points for attention
1) Using non-original accessories may cause low performance, body

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