Info release on new Video Doorbell

Support page has the info you are looking for.

Blink — Blink Video Doorbell introduction (blinkforhome.com)

Blink — Blink Video Doorbell FAQ (blinkforhome.com)

It is powered by the batteries weather wired or not. Weak sauce.

More stuff to get people to buy a cloud subscription package. Give away the hardware/software and make money on the consumables - monthly fee. When the hardware craps out in a couple years, no big deal as the price paid was so low. That’s how inkjet printers roll.