The TT2 Twin Air Horn with 24 Volt Compressor is a twin air horn for use in vehicles that do not have an air supply fitted.

The 24 Volt compressor that is included with the horn can be connected to the standard horn button or to a separate control. It will then provide enough pressure to give a satisfyingly deep blast of the TT2 Twin Air Horn.

The longer of the two trumpets measures 11.75 inches.