Rough Diesel Idle Sound Circuit Speaker:Speaker: Jumbo (+$5.00) Print your model building ideas

Print your model building ideas and assemble

Adapter with On/Off Switch:

you will still need to turn off the switch when you are done with the model

3mm or 5mm LEDs

Rough Diesel Idle Sound Circuit Speaker:Speaker: Jumbo (+$5.00) Print your model building ideasTruck Engine Sound Effect Circuit Add this rough diesel idle engine sound effect to your model semi trucks, tow trucks, excavators, tractors, and more heavy diesel vehicles! This idle sound circuit has a compact design allows you to discreetly place it into your model vehicle, or amidst your landscapes or diorama to create a great soundscape to enhance the overall realism and experience of your model, layout, or diorama. Make your truck come alive!