【Two modes available】Irregular Rolling Mode:Press the first button ( Blue light), and it will automatically move and rotate for 25 seconds, then stop for 5 seconds, repeating this cycle for a total of 2 minutes before entering standby mode. Crazy Bouncing Mode:Press the second button (Red light), and it will bounce for 10 seconds, stop for 5 seconds, repeating this cycle. It operates for a total of 1 minute before entering standby mode | 【Suitable for multiple sites】Irregular running mode doesn’t work with the tennis cover,for hard floors only,and not for chewers. The tennis cover could only work under crazy bouncing mode，special for slight chewers,better work on thin carpet or a lawn outdoor for lower noise. | 【Motion-Activated Toy】Equipped with a built-in motion sensor, this toy automatically rolls and rotates for 2 minutes or bounces crazily for 1 minute when your dog touches or bites it, then enters standby mode. The ball has built-in multi-color flashing lights that can attract more attention and bring more joy to your dogs | 【USB Rechargeable】Built with 600mAh battery, charging 1.5 hours, working for 4 hours continuously | 【Durable & Safe Materials】PetDroid interactive dog ball toy is made from durable polyamides that are safe and non-toxic. However, please note that the toy is not suitable for aggressive chewers | 【Water-repellent】Waterproof:IP54. Meet the requirements for indoor and outdoor use | 【Package Include】Interactive dog ball toy,tennis cover,USB cable,user manual | 【LIFETIME NO RETURN CHANGE】We provide free change to our customer without returning bad ones in 1 year | 【Tips】Please select the bouncing mode and put on the ball cover when using it on the carpet.