I recently discovered an app, "Baby Sleep Instant", that lets you play a number of different relaxing sounds for baby. One of them plays the sound of being in a car (it even includes the sound of the turn signal) and DD LOVES it. It always gets her to sleep.

The only problem is that it uses my phone so I can't use it at the same time. I would like to get a stand alone device that plays the same sound but I can't find a white noise machine that has the sound of being in a car.

I guess I could potentially use an old phone to play the app, but I'd prefer a noise machine designed for this purpose with proper speakers and everything.