Nafuhare Storage Container Rice Bin 7L (5kg) Large Capacity Vacuum, New, Unused Excerpt from Amazon: 【One-Push Easy Operation】The nafuhare vacuum storage container is electric and integrated, so you can simply put in what you want to store and press the button to automatically remove air, keeping food fresh for longer. 【Rechargeable, 90-Day Continuous Standby】Built-in 2000mAh large-capacity battery, with a long continuous standby time, and can be used continuously for about 90 days on a single full charge. (※Calculated assuming the cap is opened once a day) 【Automatic Air Pressure Adjustment】The storage container is equipped with an air pressure sensor, and when it detects that the air pressure inside the container exceeds -15kPa, it automatically adjusts the air pressure, maintaining a vacuum negative pressure of -20Kpa, and can always maintain a vacuum state. 【Quiet Design, Large Capacity】There is a slight sound when extracting air, but otherwise, it is quiet during daily vacuum storage. Furthermore, with a 7L large capacity, it can be used as a rice bin for up to 5KG. 【Freshness Preservation】Strongly prevents oxidation and spoilage of food, properly manages and stores food from everyday use, and allows you to use it all without waste. Applicable for storing rice, flour, sugar, coffee beans, tea, etc. No box