High – class Stainless steel materials for body and heating tube Instant for hot water, no wait, no waste Built-in-physical electricity guard Overheat protection, heating will cut-off automatically at 50° C Manual water and power control switch & automatic mechanical water pressure switch, double control mode completely avoid dry heating Easy operation, double selection for cold water and hot water; water flow rate is adjustable Easy installation, power cord and leakage protection plug are equipped with the appliance Nozzle is rotatable in 180 °. Convenient to use