The BenQ LK935 4K Laser Conference Room Projector has been revealed. The device has been designed for video conferencing, with a wide 21:9 aspect ratio and up to 5,500 lumens brightness. Other features include specific Video Conferencing and Presentation Modes, 3D keystone correction and a built-in speaker.https://www.notebookcheck.net/BenQ-LK935-new-4K-laser-projector-arrives-with-up-to-5-500-lumens-brightness.736279.0.html
For info to readers, this projector is hdmi 2.0b, it isnt 2.1 (from manufacturer website spec).
For some reason this detail is always left off the projector articles for devices with 2.0b connections.