Strong driver - cat toys could easily go across from ceramic tile, wooden, low rug even high pile carpet, It rarely gets stuck in corners, help you entertaining high-energy cat for hours! NOTE: Under same working mode, balls rolling on carpet will slower than wooden floor IMPORTANCE TIPS OF CHARGING - 5V/1A Adapter Only. cat ball works 5 minutes and goes into sleep mode if cats aren't playing with it and wakes up once (after 2h) in while to see if they are now interested Wake-up features - pets could make toys activate by paw's touch, motion cat toys will help interacts cats when you are out THREE working mode - Fast mode (Blue lights) rolls fast on high rug, slow mode (Purple lights) moves well on floor, Interactive mode (Yellow lights) only moves when nudged by your cats. Short press to switching working mode, and distinguish via the color of the light Chirping cat toys - realistic bird song could attract cats intersted in this game, voice could be turn off by quickly press button