This video was recorded at an actual wedding reception. DJ Brendan Pfaff is featured here giving an excellent overview, plus he includes some great tips on setting up decorative room lighting.
Another great feature of the lights we rent is the ability to specify an RGB value to create your own custom color. Here is a quick video showing how to set a custom color.
You can also set each light to scroll through all the colors. You can select a fast change, slow change, or to change on beat with music playing. This video was recording at a wedding reception, with the pattern just set to random.
Very easy. Here is another video showing how to use them.