HIGH-QUALITY MATERIALS: This barrel water pump is a BPA-free drinking fountain. Food-grade silicone hose, 304 stainless steel, high-density ABS plastic, resistant to low and high temperatures. Specially designed extractor for water, tea, coffee and drinking pure water. USB CHARGING: Multiple charging methods, suitable for car charger, AC adapter, treasure charger, charging is very easy, only requires a USB cable and a power adapter. ONE-BUTTON OPERATION: Simply attach the water suction device to the bottle opening. Press the button to pump and press it again to stop pumping. The one-button operation makes it easy to use even for children and older people. HIGH COMPATIBILITY: It is basically a universal water bottle pump for PC bottles with threaded holes. Capacity: 7.5 litres/10 litres/11.3 litres/15 litres/18.9 litres. To ensure that the pump can grip the bottle neck better, the lid of the water bottle must not break, which is much easier to use compared to hand pumps. NOTE: Charge the pump for 3-4 hours with a normal USB charger before first use. Suitable for portable indoor and outdoor use such as in the office, at home, in the kitchen, camping, picnics, etc. This portable water pump is ideal for use at home and in the office. High-quality materials: stainless steel, ABS plastic resistant to high and low temperatures. Can be used for water, tea, coffee and other beverages. USB charging: various options, suitable for cars, portable chargers. Useful in the kitchen, office, garden and when camping.