How does the new Bluetooth EZ App Engines produce their sound...from the engine or from a speaker system of some sort?
Current products the sound comes from the smart device speaker.
Where can you get the app?
Tap App Store on your Bluetooth 4-supported Apple smart device, then search for Bachmann E-Z App
The sound comes directly from the app through your device's speaker. You can pair your device with a Bluetooth speaker which provides very dynamic sound when placed near your layout or use your ear buds plugged into your device for a more immersive experience.