It’s certainly an impressive beast, marrying a triple-laser 4K projector with four satellite speakers for spatial sound, and then cramming everything into a wheeled tower. It weighs in at over 70 lb (~33 kg) though, and stands some 30 inches tall, so while it can be moved around from room to room or even outdoors, it’s not exactly portable.
Source: Portable Nebula P1 Projector Offers Detachable Speakers for Immersion