Practical and durableIf the bottle opener does not work or the battery is low, check whether the batteries are alkaline. Please do not use carbon batteries. Note: The product contains a battery. Easy to useUse a foil cutter to cut the aluminum foil, press and hold the button of the electric bottle opener and pull the cap. This bottle opener has a transparent window that allows you to see the working process. Universal The electronic bottle opener has been carefully improved over many generations and is suitable for bottle necks with a diameter 35mm, allowing you to open quickly and effortlessly. Beautiful design The product details are exquisite and very beautiful, allowing you to have a fashionable and beautiful bottle opener.