... ,tap,mixer : with CE, ISO, matches 1 piece of 3V lithium battery,save water, high quality,resonable price automatic faucet, tap, mixerModel ... No.:FW-1A11Power and Voltage: CR123A Lithium Battery, D/C 3VDiameter of Water Pipe: G1/2"Water Pressure ... °CMaterial: Zinc-alloy Chromeplate80cycles/day, doesn't need to change battery within 3 years.Double Sensor Function: (it can use in ...