Mine broke in less than a month. When I received this item the first day after charging it, it seemed like it was really weak, almost hesitant to vibrate. I haven’t over charged it, put it in any water, or dropped it for it to completely stop working. It cuts on and off, I can change the modes, but the vibration doesn’t work at all and I should’ve known something was wrong when i first cut it on and it was struggling to vibrate . I know how this toy work because I bought one about a year ago and I loved it, which led to me purchasing another one. It sucks that this time around the product was defective.