Ezviz T6 Guide D'installation page 11

Basics
Button
LED Indicator
Flickers
closed status.
Flickers
Charging Interface
Base
Charging
You're recommended to charge the T6 for the first-time using.
Connect the T6 to the power socket with the power cable. The
indicator turns red indicating the T6 is charging and turns blue when
T6 is charged.
The battery can last for up to 3 months. Recharge if the battery
runs out.
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Blue Once: The door or window resumes to the
Red Once: The door or window is opened.
7
Power Socket