The automatic can opener opens can save time and effort only need to insert two 2AA batteries(not included). You don't need to waste time and effort opening the cans, and the electric can opener will automatically stop after the can is opened. Our electric can opener uses unique blade technology when opening the can, the outer ring is cut, leaving no sharp edges, after the can is opened, there is a magnet to attract the lid, and it will not fall into the food to ensure food safety. The can opener electric opens almost size cans (excluding square and borderless rows). The electric can opener automatically cuts the can 360 along the can lid.