SpongeBob & Patrick Krabby Patty Little & Big Kid 3D Slipper

I bought these because I love the style. I had no idea they lit up until I received them. It did take me a really long time to figure out how to turn them on, but there is a very small button inside the slipper, near the back right light, near the top of the light. You really have to feel for it, and then press firmly with two fingers. One finger on the outside and one finger on the inside of the slipper, sandwiching the button. Other than the difficulty turning them on, and the certainty I have that replacing the battery would be impossible without taking apart the slipper, overall these slippers are an amazing value! I'd have loved them even without the lights, but the lights make them that much better! They are also super comfortable and seem well made!