I received this item. It seems it was never used after being opened. All accessories are included. This item is sold for 550,000 yen. I'm offering it at approximately 80% off. Please refrain from purchasing if you are overly concerned about the condition, as it has been stored in a regular household. Microbubbles are fine bubbles with a diameter of 1 to 10 micrometers (1 micrometer is 1/1000th of a millimeter), and nanobubbles are even finer bubbles than 1 micrometer (1/10,000th or less). Microbubbles and nanobubbles gained public attention in 2005 at the "Aichi Expo" when the Japanese pavilion featured a tank where freshwater and saltwater fish were swimming together, a sight that defied common sense and became a hot topic. Research has shown that microbubbles and nanobubbles have high cleaning and sterilizing power and can activate ecosystems, and research is being conducted by various universities and research institutions. They are also attracting attention in the medical field, and their application in various medical fields is expected. They are also attracting considerable attention in the beauty industry. "ViVawa," released by Outrive Co., Ltd., can instantly convert ordinary tap water into microbubble water or nanobubble water by connecting directly to a household faucet. It is also possible to pass water produced by water purifiers and water conditioners already installed in the home, or commercially available mineral water, through ViVawa, allowing you to use your preferred water to create microbubble water or nanobubble water. Microbubble water can be used to wash ingredients such as vegetables and fruits without reducing their freshness, and it can also reduce the use of detergents when washing dishes, making it environmentally friendly. In addition, it can be used for washing the face and hair, and its uses are varied. On the other hand, nanobubble water can be used for healthy drinking water, cooking, aquariums for tropical fish, and watering plants. It uses AC100V power, but it can create microbubble water without operating a pump if there is household water pressure, so power consumption is minimal. It is expected to have a wide range of uses, both for general households and for commercial use in restaurants, beauty salons, esthetic salons, health facilities, pet shops, nursing care facilities, hospitals, and so on.