This is the Funn Pack. You can see that it is properly named, given the expression of the man who is wearing it. That's Dan Das Mann, an artist. He built the Funn Pack so that he could pack fun anywhere.
Its has 4 mirror balls, 1,000 watts of sound,* a bubble machine, 2 smoke machines, and 12 lasers. The whole setup is powered by a lithium-ion battery and weighs a mere 50 pounds. That's a lot of fun that is portable wherever 2 feet can carry it.
-via Blazenfluff
*Presumably he means that his speakers are powered with 1,000 watts.