Contrary to the negative reviews we would rate this product positively. We have the Mobile now less than a year and have to say that not everything that is written here, true. As for the duration, so it is always on the batteries! However, we first inserted the best of the brand TIP and keep up today! Of course, you can hear the motor run along quietly, but such a motor makes now even a noise when it is running. Reduces certainly not the fun of it. The volume can be controlled in two stages. Even us The smaller stage appears quite loud when it comes to sleep around. However, we have since probably a different feeling for as toddlers or babies, our daughter is sleeping very well so a. The melody is very clear and quite nice. In addition, you can choose between two or three melodies and a sound of the sea with birds singing and bell sound or something like that. If everything is completely turned on, then run the music, the mobile turns, a colorful lights in spiral pattern lights downwards and a swarm of butterflies is projected onto the ceiling. For this purpose, it must however be really dark. Much power can be saved, however, when you turn off the lights and just play the melody and lets fly the bears. As for age, so that Mobile will indeed recommend to about 5/6 months. I can only say that after our daughter is only really come on the taste of time. At first we let the Mobile only for a few minutes or a little longer to run. Then the little one had enough. But since it is a little more alert, they required every night to fall asleep the bears. Another nice thing is that you can arrange the bed fixing and the Mobile can put on the floor or on the table to turn. There is once bent and snapped. Installation is easy anyway. All in all, we can only good things to say about it. That is we write this review now because we have read many bad comments over a year ago, and the part have still bought because the market will bear much. The only negative is, in our view, that the bears are not decorated in the downward direction, but are perceived by adults as such. The child underlying can not begin much so. However, that is valued by many parents as well, which in my view only shows that many appreciate the significant things wrong and so it comes to such reviews. Anyway, we are very satisfied and our now 14 Months Old daughter loves her bears and the beautiful melody. Oh, plus there is a remote control that works well and with which you can re-enable or disable the Mobile. After three playing the melody it turns otherwise on its own. Practical! :-)