Arlo AVD2001 doorbell. It can be wired in place of an existing doorbell or it can power itself with the included rechargeable battery. Has an optional subscription for cloud video storage. Listing includes doorbell, battery, and mounting bracket. No screws or mounting hardware are included. You will need to purchase the correct screws if you want to connect existing doorbell wires. Tested- I was able to power it on with the included battery
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