The batteries don’t last long. They are slowly dying. My niece loves them though for her bath time! She always wants to play with them!!!Cutei have got most of the different sets of these and only one has not workedGreat bathtub toys!I was impressed with the quality of this product. The lights are multicolor and look wonderful. All you do is take the tabs off the bottom and as soon as it touches water it starts twinkling.These were fun lit up but once battery dies (which is fast) they are just lightless toys. This is fine unless you have a young one that doesn’t understand and demands lights again.Pretty good bath toys, but the battery life is bad. They all died within a day or two with very little usage.