Air Horns vs. Electronic Horns

My girlfriend wants to get one of those horn things for her car that plays the song Tequila. There are several horns on JCWhitney, one of which is an 4 air horn kit that only plays Tequila and the other is an electronic horn that plays like 46 different sounds, plus has a PA system.

I know that the air horn has to also have a compressor.

Which would be better? I kind of like the electronic one, but I am unsure if it will get my girlfriend into more trouble.

Thanks for the help.