A company that makes battery LED pico projectors. I own the Aaxa P7 projector. It is the most important piece of gear I own, and I don't think my photography practice would have been successful without it. That projector has survived years of abuse in terrible outdoor conditions and still works great. I can't imagine there are many other people who use that projector for what I use it for, but for me it has been the perfect crutch and technical support for my photography.