The smart doorbell you were looking for is here. You can connect this Ring Video Doorbell 2 with Alexa and you can make Alexa annnouce if there’s anyone on the door pressing the bell. You can also talk to the visitors through Amazon eco device. You can also use your phone, pc or table to communicate with your visitors. You can see your visitors using PC, tablets or smartphones. The doorbell is powered by a rechargeable battery pack. 1080 video with infrared night vision makes it worth getting.
Ring Video Doorbell 2 Doorbell Camera