【Adjustable Dispensing Volume】: Mouthwash dispenser press and hold the button to start selecting a gear, then click to switch gears, 10ml in first gear, 20ml in second gear, 30ml in third gear, and four gears for any amount of pickup. 【Wall-Mounted Design】: The mouthwash pump has a wall-mounted, no-hole design, which can be mounted with double-sided adhesive, or placed directly on the desktop for use. 【LED Screen】: Mouthwash container dispenser is equipped with a LED screen, clearly displaying the current gear and working status. 【600ml Large Capacity】: 600ml Large capacity design, easy to add mouthwash, reduce the trouble of frequent refilling. 【1200 MAh Battery】: Built-in 1200 mAh battery with USB charging port, supports multiple USB charging methods.