Paoao Knob is a multifunctional all-in-one machine for ice water, sparkling water, ambient water, and hot water. Paoao Knob features innovative knob + high-definition display for precise interaction. Knob operation provides an intuitive and accurate user experience with good tactile feedback to enhance human-machine interaction. Users can easily adjust various functions—all operations are completed by "twisting" and "pressing"—enhancing the fun of sparkling water making.It adopts nano-bubble mixing technology to continuously produce 800ml large-capacity sparkling water with optional high and low bubble concentrations.The immersion UV sterilization system + four-stage filtration system ensures drinking water safety.We are passionate about creating a "reusable lifestyle," replacing bottled water with direct drinking water to provide a safe, healthy, and fun way to drink while improving life convenience.