Baby Mobiles

Does anyone know of a phone that has music / features that lasts longer than 5 minutes? All phones that I saw it close after 5 minutes, and my son does not fall asleep so quickly. I am a bit on a budget, but all ideas will be useful. (We have a stereo in his room with Lullabys, but he likes to watch the real motion moving a bit too)

A musical aquarium crib can be useful. We have the Baby Einstein (played classical music), it lasts 30 minutes before cutting and has a volume control soft. ($ 25)

I wonder oceans mobile (cost about $ 30), it takes about 10 to 15min.

We have one made by Sassy that lasts about 10 minutes, and it has a remote control that we can use to turn it back on without having to return to the room.

I had the same problem, mine stops in less than 5 minutes.