Cordless USB Operation: Equipped with a USB charging interface, this portable water cooler dispenser works with phone chargers or power banks and provides dozens of pumping cycles per full charge. Compact Folding Design: This collapsible features a that folds to reduce size by 80% after use, making it easy to store on a desk or pack in a backpack for camping or trips. Efficient Water Flow: With a high-speed motor and dual pump design, this foldable water dispenser pumps water three times faster than ordinary hand pumps for steady filling. Safe Leak Proof Construction: All water contact parts are made from food grade ABS and silicone materials with a sealed design to prevent leaks and ensure safe drinking water without odor. Universal Bucket Fit: The dispenser can be adapted with an extended silicone tube to fit various bottled water sizes, making it suitable for different water buckets at home or in the office.