This motion sensor trash can requires 2 AA batteries and proper garbage bag installation to function correctly. If any issues arise during use, please contact us immediately. It measures 11"L×7"W×9.5"H and has a 1.3-gallon capacity, constructed from durable ABS materials. It is ideal for desktops, office countertops, kitchen sinks, vehicles, dormitories, and outdoor activities like camping and BBQ prep. The trash can features IPX5 waterproof technology for its smart sensor and splash-proof lid, powered by 2 AA batteries. Its design includes commercial-grade wave stripes for both visual appeal and slip resistance, along with a trash bag fix ring to secure trash bags and hide them visually. Ensure the inner ring is placed on the four vertical liners inside the trash can to prevent it from sliding down. This package includes a tiny desktop garbage bin with a trash can fix ring, a waterproof lid, and fast-response customer service.