With a capacity of 250ml, the newly upgraded automatic sensor large pump head is handcrafted from high-quality material. The large bottle mouth design ensures easy refilling without the worry of spills. It is ready to use upon startup and does not support flow rate adjustment. Its minimalist functionality ensures better battery life, powered by a built-in 1800mAh battery that lasts up to 3 months on a single charge. It comes with a 1-year after-sales warranty.