quiet design: The electric mouse toy is made of high quality materials such as fluff, ABS and food grade silicone, which are scratch and buy resistant. With quiet rubber wheels, it rolls smoothly on most floors, without distraction or scaring your pet. USB Rechargeable and Activatable: The electronic teaser toy is powered via USB and can be easily charged (cable included), so there is no need for frequent battery changes. It automatically stops after five minutes of inactivity and responds to a light touch to restart the game. Easy to use: The toy is easy to use. Simply place it on a flat ground where it randomly rolls around and automatically changes direction when it encounters obstacles, for instant play fun even when you're not at home. Ideal gift and carefree purchase: This interactive cat toy is a great gift for your cats, and we guarantee that you and your cat will love it. It provides a fun companion for your cat, even when you are out of the house. Instructions for use: Use the electric cat toy on hard and flat surfaces, not on carpets or mats. Charge it in time when speed slows down or intermittent rotation occurs, and remove loose parts to ensure your pet's safety. Product Name: Cat Toy Electric Mouse Play Size: 10.5 x 4 x 17cm or 4.13in x 1.57in x 6.69in Package: Cat Toy Electric Mouse Play x 1pcs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.