This is clearly the best light up looping yo-yo made to date. Not only the best light-up yo-yo on the market, but the Pulse™ is a high-quality, perfectly balanced, ball-bearing yo-yo that is actually unique, and affordable. New lighting technology offers increased color changing lights and patterns with each second of increased spin time. It turns a standard 2-handed performance into a fantastic show of light and color! Comes with extra batteries.