I got afraid that this was messing up after a couple of months because it started not shutting off after the fifteen-minute timer should have made it turn off, and it started playing the first line of "Row Row Row Your Boat" over and over... turns out that's what it does when the batteries are low. As soon as we replaced them, it worked perfectly again! I just saw several reviews mentioning the jumping and not cutting off after the 15 minutes, so I wanted to mention that.Overall, this was a great purchase that I would highly recommend to any new parent. It fits great on the side of my son's bassinet, and he absolutely loves it!