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The VTech Safe And Sound DM221, constructed by VTech, is a digital audio monitor which consists of a baby monitor as well as one parent unit.

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Monitor Making High Pitched Sounds

Why is my monitor making high pitched sounds?

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Android 维修工具包



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1 Answer

Monitor out of range

The monitor’s may be too far apart from each other. Try to get closer to the other monitor. If this does not help, try to adjust the sensitivity level.

Need to adjust sensitivity level

Try to adjust the sensitivity level to a lower level to avoid audio feedback.

Monitors may be too close ¶

The monitors have to be more than three feet away from each other. Try backing up from the monitor to get rid of noise. If this does not work, try adjusting the sensitivity level.

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