This is a very bright, easy to use neon wire auto kit has an added feature that allows the neon wire to react to music. Can easily be switched between off, sound, constant mode with the flip of a switch. The sensitivity of the sound control can also be incresed or decreased with the adjustment dial. Complete with your choice of a 5 or 10 foot section of el wire w/ e-z connector. Also includes the 12 volt inverter with lead wire and e-z connector. Simply attach red (+) wire to a 12 volt source, and black (-)wire to a ground and you are all set.