It doesn’t state it in the woot specs, but I do believe these have two-way audio and a siren according to Arlo’s website Arlo Pro 3 2K
Correct. The Pro 3 adds built-in spotlight and siren, image zoom, and wider field of vision. (The Pro 2 also had 2-way audio). The Pro 3 base can also connect to Pro 2 add-on cameras.
This is a great price on the Pro 3, but it kinda bums me out that it doesn’t come with free rolling 7 day cloud storage like on the Pro 2. Instead, they give you a trial period. Still tempting though.