I put this up for my sons birthday, so we are past the return period. Gave it to him today. We tried multiple brands of batteries. We tried everything. Push the button, nothing happens. No power is getting to the fan. Feels very cheaply made. My son is so disappointed because like most kids, he loves bubbles. I am disappointed, because I knew this toy would be a hit with him, and would have been if it functioned at all. Save yourself the stress, and go with another brand.