Sparkin it up with Mario

These two solid-state Tesla coils are able to generate enormous, spark-inducing RF energy at precise frequencies accurately enough to actually control the sound the spark makes while it's, er, sparking. What you're hearing is a carefully-controlled buzz, at massive power and current. No speakers. Just Mario!

Mario, and two giant gal-durn solid-state Tesla coils!

More fun about Tesla coils: http://en.wikipedia.org/wiki/Tesla_coil