Fangrui Product Details Advanced Cross-surface Mobility: The Cat Toy Ball Has A Powerful Drive That Enables It To Traverse A Variety Of Surfaces From Tile And Wood Floors To Low-pile And High-pile Carpets Without Getting Snagged Frequently. Although It Moves Slower On Carpets Than On Wood Floors, It Provides Endless Entertainment For Energetic Cats. Intelligent Charging And Energy Saving: To Ensure Optimal Performance, Please Only Use A 5v/1a Adapter For Charging. If Not In Use, The Toy Will Enter Sleep Mode After Running For 5 Minutes And Briefly Reactivate Every 2 Hours To Attract Your Cats Interest, Making It Energy-efficient And Interactive Even When You Are Away. Interactive Modes To Suit Every Cats Preference: Equipped With Three Different Modes - Fast (blue Light) For High Carpets, Slow (purple Light) For Smooth Floors, And Interactive (yellow Light) That Can Be Activated By A Gentle Push - This Toy Can Adapt To Your Cats Play Style. Easily Switch Modes With A Short Press And Identify Them By The Color Of The Light. Enga