I purchased this new and used it, then stored it. This is my second Magic Ball, and I haven't used this one very much. However, there are signs of use. I have confirmed that it works. The left button turns it on and off, and the right button turns on the light while it's on. The light is not colored. I have disposed of the box and instruction manual. It's 500ml. I am not considering any further price reductions. I plan to wrap it in bubble wrap and ship it in a recycled cardboard box. Please refrain from purchasing if you are overly concerned about minor details.