I buy this projector for home as a inexpensive device for the `` man cave '' . it set up in under 1 min out of the box and play my dvd 's flawlessly in high definition . my laptop display PPT presentation keep the display on the computer on for dual image to either stay at the laptop or use a remote . you will need a male to male computer monitor cable - they sell they at wally world for $ 20 or best buy for the same price if you want to keep it old school and simple . the display be crisp and clear . it have solid self adjust screw up \/ down leg that function well and a lot better than other flimsy projector 's I have look at . if you do not want to use a laptop and want to run it usb : it have a usb input for thumbdrive to play jpg , mp3 's , mpeg 's , wmv 's , avus 's . you have to create a folder on the usb and `` save as '' jpg format for a ppt slide in Powerpoint to use a stand alone thumbdrive with no computer - be sure to name the jpg slide as a , b , c , d , e instead of 1,2,3,4 when just use a thumb drive . it be easy and not a task to flip through the folder and image file create for presentation and pause they if need . you can also play a mp3 sound file during the presentation as background music if you need to . the remote for the projector be great and I do not even have to point it at the machine for it to pick up and function . I point it at the wall 15 ft away and it bounce back at the machine and work fine . the remote work great for the dvd function and it be nice to have a all in one device vs cable and separate device - external dvd player . the sound be fine , I wish it have be louder to bump it up 20 - 30 watt speaker to blast it , but it be as loud as a standard large lcd tv . that be the only draw back to it . you have the option of hook external speaker up to it if you want to . I do not need to . it be a nice device that will serve both purpose I buy it for - worth every penny spend for it . I would recommend it . if you want a more professional model , the Epson - PowerLite Presenter WXGA Projector with dvd Player be the next step up in higher resolution and price . the resolution provide in this model be more than enough to do what I want and feel satisfied for the purchase amount pay .