Pfister GT529-ELS Lita Single Handle Pull-Down Faucet with React Touch Free Technology, Stainless Steel React Sensor- Simply guide your hand within 4" in front of the sensor range to turn the water on or off Plug-in for everyday convenience, with optional battery pack available SmartStop automatically shuts off the faucet after 2 minutes of inactivity Hibernate gives you the option to disable the sensor for faucet cleaning Pforever Warranty covering finish and function for as long as you own your home