This simple to use Light-Up Yoyo is perfect for beginers & looks great in the dark. When the Yoyo reaches the bottom of the string, the tug motion activates the LED lights, inside the transparant casing, & sound effects which leave patterns in the dark! No on/off button is required, so it's always ready to play with! 3+ Age rating Batteries included Motion activated Red LED's Sound effects Transparent Yoyo