I love the sound of being in the car, out on the open road at the start of a summer road trip. If I'm not the one driving, that same sound starts to lull me to sleep after many hours on the highway. The tires on the pavement and sound of the engine combine to create a white noise effect. Why not take a road trip cat-nap, even if you're at home? And nobody will be mad if you forgot to pack the sunscreen. Start your white noise road trip with this MP3!