The size of the bucket is not limited - compatible design for barreled water, 5L/7.5L/11/18L commonly used in the market are applicable, there is no need to worry about adaptation problemsAll-in-one - all-in-one seal watertight Transport only, no storage on demand Every drop is fresh waterUSB charging - Micro USB charging interface, compatible with mainstream mobile phone chargers, built-in high-quality lithium battery, no need to find a socket, portable and easy.Lasting battery life - 6 barrels of water can be extracted once charged, easily meeting the drinking needs of the family.Food-grade silicone pumping pipe - silicone bottom gravity hammer design, to solve the problem of pumping pipe floating, no need to manually pour water, water is more stable.