Motorola AM21 User Manual page 15

The Digital Audio Baby Monitor system produces a high-
pitched noise
• The parent unit and the baby unit are too close to each other. Make
sure that the parent unit and baby unit are at least 1 metre away
from each other.
• The speaker volume of the parent unit may be set too high.
Decrease the volume of the parent unit. Refer to section 3.3 for
volume level settings.
Battery in the parent unit is running low quickly
• The volume level of the parent unit may be set too high, which
consumes power. Decrease the volume level of the parent unit.
Refer to section 3.3 for volume level settings.
Troubleshooting
15