A:AnswerWe are glad to hear about your question and I am happy to see you are looking for other options to hook up EPJ590WH, Absolutely, you can use the USB drive and USB connector to connect your laptop.
A:AnswerIt’s an easy fix. Just YouTube how get sound to work on fire stick or whatever you’re trying to use to play a movie/watch tv with. You’ll have sound in less than 5 minutes.
A:AnswerYes you can hook up portable speaker. It’s not rechargeable it has to stay plugged in. Portable because I have it a tripod and I don’t use a screen just the wall.
A:AnswerIt has a similar mount like a camera has for a tripod. I believe the same size also. Not like a larger more conventional projectors multi screw mount.