To all with questions... They simply work by alternately flashing a black screen over 1 eye at a time in sync with you monitor. on 1 flash, you will see the seeing eye's perspective, and on the other flash, you'll get the other eyes perspective while blacking the view of the other (back and forth). the 2 images alternate on the monitor and are overlapped. The result is a natural, STEREO view of how we see. You need basic equipment (2 working eyes in your head, LOL) in order for this to work with shutter glasses. I highly reccomend tying this folks, they're all over places like ebay for 20-5- bucks. The kit I got retails for a hunnerd, i got em for 50. they came with 2 sets of glasses, 1 wireless and a buch of 3d stereo software. not bad. not a plug here, you just dont know (as i didnt) what your missing...