Specifications Packing list: 1 x Electric water pump 1 x USB charging cable 1 x Inlet silicone tube Features: 1. Designed to take care of the elderly and children, easy to install and drink water with one click2. Two working modes: 600ML quantitative pumping and continuous pumping 3. Designed with safe materials, non-toxic and odorless, 304 stainless steel water outlet, healthy and environmentally friendly4. Suitable for pure bottled drinking water, various types of gallon buckets, with 2.16 inches (5.5cm) neck 5. Built-in USB rechargeable 1200mAh battery, can be used for 30-40 days or about 4-6 bottles of 5-gallon water after full charge Installation suggestions: 1. If your bottle is a standard gallon bucket, please do not remove the bottle cap when installing the water dispenser 2 . If your bottle is a regular bucket, please make a hole in the bottle cap and install the water dispenser in the hole. Due to photo lighting issues, the color of the picture may be slightly different. Due to manual measurement, the size may have an error of 1-2cm.