1. This product is a motion sensor trash can, customers need to install 2 AA batteries and follow the steps to put on the trash bag. Then you need to press and hold the button on the lid for more than three seconds to start it. After replacing the battery, the same operation is required to run the trash can. 2. Upgraded Technology - IPX5 technology waterproof motion sensor. Splash-proof and prevents the product from being damaged by moisture. 3. Perfect Size - 11.8''L×5.90''W×12.60''H, capacity 2.5 gallons, ABS material. Perfect size for offices, living rooms, bathrooms, dormitories and other small places. 4. Pet-proof - The smart opening device ensures that the trash can reduces unnecessary openings and has a longer service life, while effectively preventing pet nuisance. 5. Fixed Ring - The product includes an inner barrel and an outer barrel, and the internal fixed ring can fix the trash bag in place to prevent it from leaking. 6. Oval Design - The oval appearance makes the product beautiful.