The best automatic water dispenser pump is rechargeable via USB cable. Can be used to pump out 4-6 water jugs if fully charged. The shell is made of high-quality ABS plastic, lightweight but solid. Simply fasten the electric pump water dispenser on the bottle mouth. Simply tap to operate. Totally hassle-free even for kids and elderly. Unlike other water dispensers, the electric pump water dispenser is compact and fully portable. Ideal when traveling or camping.