Wolo Music Time Remote Controlled Musical Speaker. At last, an easy to install, one piece musical speaker, that delivers true musical instrument sounds. This product eliminates the need for a compressor, air hoses, trumpets, relays, a switch, or messy wiring throughout the car. Simply place the "Music Time" in the engine compartment, connect one wire to ground and the other to a 12-volt source and the horn is ready to play. The small key chain remote controlled transmitter can command all functions from within or outside of the vehicle. These functions include: on/off, volume and song selection. Choose from 3 different models. By Wolo. Each model plays 2 different songs: Model 001: "Wedding March" & "Hava Nagila" Model 002: "La Cucaracha" & "Mexican Hat Dance" Model 003: "Dixie(Dukes of Hazard & Musical versions)" & "On The Road Again"