Features: 1. Designed to care for the elderly and children, easy to install, drink water with one click 2. Designed with safe material, no toxic and no smell, 304 stainless steel water outlet, health and environmental protection 3. Suitable for pure bottled drinking water, a variety of models gallon barrel with 2.16-inch (5.5cm) neck 4. Built in USB rechargeable 800mAh battery, can be used for 15 days or around 3-5 bottles of 5 gallon water once full charged Installation Suggestion: 1. If your bottle is the standard gallon barrel, please don't remove the bottle cap when you install the water dispenser 2. If your bottle is the ordinary barrel, please open a hole on the bottle cap, then install the water dispenser in the hole Thanks very much Reminder: Charging cable includes white or black color, will be sent randomly, please understand Attention: Please don't boil the silicone tube in the water before using, which will damage it. Just wash the silicone tube with some dish soap is OK. Thanks very much Package Includes: 1 x Electric Water Pump 1 x Inlet Pipe 1 x Outlet Pipe 1 x Micro-USB Charging Cable