There
is a switch that allows you to turn the neon light always on (pictured)
or sound activated. The turn knob next to it controls sound
sensitivity.
When
you are on the sound activated mode, it will monitor the sound/music in
the room and flashes on/off along. It is like a synchronized light
show.
Powered through a regular 4pin Molex power connector off from your power supply (see pictures)