User's Manual

4) When the indoor unit battery level is low, the Low Battery (IN) blue light of the indoor unit will
keep flashing as a reminder to plug in the power source for charging.
Notes
1）Be sure to turn on the rotation button of indoor unit, otherwise the battery capacity and charging
status of all units cannot be monitored through the indicator light.
2) Better to connect the power supply always even if the indoor unit is not in use, so as to keep the
battery at a fully charged status and avoid doorbell malfunction due to power outrage.