Audiovox D2011 - Manual (Page 21)

Using Headphones
Using Wired Headphone
Connect headphones into the headphone jack on the left or right side of the unit.
Quick Tips:
•
Excessively loud volume could damage your hearing.
•
Turn down the volume before you connect the headphones, and then
raise the volume to comfortable level.
•
Sound from the DVD Player’s external speaker will stop when
headphones are connected.
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