FEATURES AND FUNCTIONS INTELLIGENT:It possesses the function of anti-light,anti-ultraviolet rays to avoid leakage caused by the interference of light,vapor and ultroviolet rays,saving water efficiently. WATER SAVING:Water flows out when you ener the detection zone and stops immediately once you leave the zone . COMFORTABLE:Water comes out and you will feel soft and comfortable. MINI-CONTROL-UNIT:The control unit is super-minisized and highly-concentrate on induction window. What′s more,it is completely moisture-resistant and waterproof. LOWER POWER CONSUMPTION:4AA alkaline batteries can be used,which is safer and power saving.(AC/DC Power are available for your option.)