Delta Faucet T14400-PNT2O Traditional Tub Shower, Polished Nickel Runs on 3 AAA batteries (included) H2Okinetic Technology sculpts the water into a unique wave pattern, giving the feeling of more water without using more water Water Sense certification promotes water conservation Pressure balance valve keeps water temperature within a safe 3 Degree F Pause feature reduces the water to a trickle, allowing you to conserve water while doing tasks such as lathering up or shaving your legs