The TP-Link Kasa Smart Doorbell and the Kasa Cam Outdoor are now available in the US. Both devices have two-way conversation functionality and are compatible with smart assistants like Amazon Alexa. The smart doorbell has a 3 MP HD camera, while the outdoor security camera is capable of 2K images and videos.
https://www.notebookcheck.net/TP-Link-adds-two-new-products-to-its-Kasa-range-a-video-doorbell-and-a-2K-security-camera.612293.0.html