[Guard Your Drinking Water Health]The water dispenser is designed with food-grade materials to that the parts that come into contact with water are safe to use, and the concept of guarding the user's drinking water health has been carried out from the very beginning of the design, so you can rest that you can choose us. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! [Ultra-Long-Lasting]Our water pump contains a battery and comes with a USB cable, a full charge last you 30 days or 4-5L of water, enough to use it without any worries.The water dispenser for bottle not only operates for long periods of time, but also dispenses water quickly, saving you time. [Safe Material &Easy operation]Our gallon water pump made of high density ABS plastic and food grade silicone tube. It is safe and easy to use. Simple installation and easy to operate one.