Video Doorbell v5
Flexible Power Method
Two power supply options are available, easy to set up, and works on any home.
1. AC input:
Connect the 8-24V AC input with the 2 screws on the backboard, directly powered by the AC input from the doorbell transformer.(transformer not include)
2. Powered by the battery :
need 1-2 rechargeable batteries 18650, you can charge it using the USB port.