This Christmas light up beanie hat is well made and beautiful! When I first got it I thought it had a dead battery. It wouldn't light up no matter how I pushed the button. It said it came with 2x batteries, but there was only the one that was in it, and sadly it was dead! I was so bummed! Well, it was still a very nice hat and would keep my head warm! You could hardly notice the lights since they were clear. BUT THEN.. Still not willing to give up onthe idea that you could replace the battery, even though the hat was completely sealed and i couldn't even find a seam, (They said you could replace the batteries) I found a weird feeling attachment to the button. Of course mind you I am feeling through a bunch of yarn, but I suddenly realized it was a battery saver! You know, those plastic tabs that they put in so people or circumstances can't turn it on and run the battery down? Yeah, one of those! I pulled it out using several tugs and letting go and starting again, because mind you I am doing this through a bunch of yarn, I got it out and VOILA! it works! It is gorgeous now! I love the lights and the hat and I am super happy!