Lumens VC-B11U features 4K ultra HD and advanced WDR technology, providing the exceptional video. The VC-B11U has an impressive auto framing feature that can detect everyone at a 120° wide angle. It ensures all participants are framing in a perfect view. Whether in low light or direct light, it ensures everyone to be seen clearly and perfectly in a video conference by WDR technology. VC-B11U built-in sensitive dual-microphone effectively captures human voice up to 5 meters, ensuring everyone is heard clearly. The VC-B11U has an extremely fast focusing mechanism that allows the focus function to be completely stable even with major movement in an online meeting.