Uniquely designed screen lifts up and out of its sleek aluminum case and is ready to use in seconds.Lightweight and self-standing so it goes anywhere. Perfect for traveling or business presentations.Features a unique pneumatic scissor mechanism for raising and lowering the screen surface.Available in 60", 80" and 100" diagonal sizes in NTSC Video format and 73" and 90" diagonal sizes in HDTV format with our exclusive Wide Power screen surface with a gain of 2.2 and a generous 45 degree viewing angle.