Woot.com, as part of its birthday sale, is selling the ring Pro video doorbell for $180 (Today, 7/12/18 only, until supplies last) - this is selling from both amazon and ring.com for $250.
https://tools.woot.com/offers/ring-video-doorbell-proFor more details, go to ring.com - note, this is only for the pro version which connects to a hardwired doorbell.