The CineBeam projectors support 4K UHD content and LG's ThinQ AI. Now, they also support Amazon Alexa thanks to a new software update. This applies to the HU70LA and HU85LA variants of this series.
https://www.notebookcheck.net/LG-s-4K-UHD-CineBeam-projectors-can-now-use-Alexa.457655.0.html