I need help with an arlo doorbell with camera

[Bipper]

I recently moved and the house came with an arlo doorbell already installed, how do I use it? can I use it? 

[StephenB]

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@Bipper wrote:

I recently moved and the house came with an arlo doorbell already installed, how do I use it? can I use it? 

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It depends on whether the previous owner removed the doorbell from their account.

If they did, you can install the Arlo app on your smartphone, create an account, and add the doorbell to it.

Note that many of the features (cloud recording in particular) require a paid subscription.

[Bipper]

how do I tell if it's the wireless or wired one

[StephenB]

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@Bipper wrote:

how do I tell if it's the wireless or wired one

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If it has a removable battery inside, then it is the wireless one (AVD2001).