My daughter was going to celebrate its 10 years without being able to spend a dry night ... No way to sleep at a friend, and fear of going on a school trip. There are now two months, we tried it out with this nocturnal alarm, which looks identical to other models that cost double or triple. Certainly, the finish is nothing extraordinary, especially the volume setting: using a needle to touch the bottom of a small hole on the side to change the intensity. Even at the maximum it does not sound very strong, but enough to wake Dad sleeping in the next room (open) and of course the brother who shares the room (exiled thereafter). Council of implementation: clip on the doubled part of panties (quite low, so), otherwise the fabric thin enough not isolated and it sounds out of the box. In a first time, we must stand together with the child to help change the wet pants and pajamas (+ a towel in the bed to avoid having to change all the cloth) and go the toilet or pot in the room if it is a bit far. The alarm sounds, it is too late, but the child begins to get used to getting up systematically. I had to force her sometimes. After a good week or 10 days, I told him he would have to manage all this alone now. I listened when she got up when it sounded, and I had again to force a couple of times so it does not stay in bed like that. Gradually we moved to tiny pees in the pants, or for nights to remember. I told him that the last step is when it would rise even without this rang. it has finally arrived, and was able to get rid of this cumbersome shows for the night! It's been about 3 weeks since it works like that, without incident. This solution has really changed the nights of our daughter, in very little time, I recommend !!!!!!