Connect your phone via bluetooth and then play music led light with switch with data cable, charging once can be used continuously for 5 hours each parents love the portable size and an easy way to help their children be quiet in the car or doctors office. Great for hands toys. Helps relieve stress. Easy to carry, a good choice for killing time. ABS material. Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice, spinners can be spun using one hand only using the fingers of one hand to stop and start spinning. Assorted color.