Projector not great, but pleases the person !!!

This is a nice night light for a child's room.
But the pictures do not turn alone. We must therefore change the image manually (which can make a child of 4 years). But it would have been better to have a disc that rotates alone.
The projection of images is not of impeccable sharpness and calls for adjustments.
Food: 3 non-rechargeable AA batteries, not included. This is not really a choice economic and even more so that the lamp does not go out alone. Why not a power mains?
Conclusion: From manual to all floors: To switch to extinguish, to rotate images .... A product really XXI century!
But since, fan of "Cars", the person is benefiting, why not 3 *?