UPGRADED USB RECHARDEABLE2020 Updated Version electronic cat toys, built-in 250 MAH lithium battery, It can be fully charged in 1.5-2 hours, and provides your kitty up to 3.5-4 hours of fun time. Your cat will love to play with this kitty toy.^AUTOMATIC DIRECTION CHANGEOur pet toy is a 360 Degree self rotating moving ball. The led motion ball rolls around and change direction automatically and smartly when encountering obstacles.^TIMER FUNCTIONIt shuts itself down automatically every 15 minutes, it can prevent your kitty from overly addicted to the toy ball and keep it fresh to your cat.^ATTENTIONThe smart interactive cat toy ball rolls best on hard floor, tile floor and thin carpet, but it might not roll well on thick carpet.^KEEP YOUR CATS BUSYIdeal for your cats to play! The ball toy will attract your cats to busy for catch and chase all day. Its a great way to help your cat get exercise,helps to keep cats physically fit and mentally active,elimination of boredom and pet depression.