This thing is a blast! I ordered a few for gifts, and kept one for myself. It only works for about ten minutes, but it is very light, so the battery can only last so long. It lights up, flashes, and it is durable. If you use it in the same room of the house, it will learn that room. If you buy 2 or 3 of them, you will never run out of fun. The kids love it, and the older parents are fascinated by watching it. You don't need to guide it around, it will eventually "learn" the room it is in. Very Cool. I've been using mine for 9 weeks, nothing has broken yet.