SpecificationPackage Includes:1 x Electric Water Pump1 x USB Charging Cable1 x Inlet Silicone PipeFeatures:1. Designed to care for the elderly and children, easy to install, drink water with one click2. Two operating modes: 600ML quantitative pumping and coutinuous pumping3. Designed with safe material, no toxic and no smell, 304 stainless steel water outlet, health and environmental protection4. Suitable for pure bottled drinking water, a variety of models gallon barrel with 2.16-inch (5.5cm) neck5. Built in USB rechargeable 1200mAh battery, can be used for 30-40 days or around 4-6 bottles of 5 gallon water once full chargedInstallation Suggestion:1. If your bottle is the standard gallon barrel, please don't remove the bottle cap when you install the water dispenser2. If your bottle is the ordinary barrel, please open a hole on the bottle cap, then install the water dispenser in the holeDue to photo lighting problems, the color of the picture may be slightly different.Due to manual measurement, the size may have an error of 1-2cm.