Bwe Touchless Bathroom Sink Faucet,Hands-Free Automatic Motion, Brushed Nickel ?Precise and Fast Sensor?The sensing function is activated when your hand is near the sensing area. Pre-set working time can accurately control the handwashing time, ensuring efficient water usage without compromising the quality of your handwashing experience. ?Splash Protection Design?By reducing the water flow rate, touchless faucets can provide sufficient water flow while minimizing water droplet splashing. ?Brushed Nickel Finish?The fingerprints, rust and tarnish can be avoid by this contemporary bathroom faucet with matte black.this black bathroom faucet suits a variety of contemporary style bathrooms ?AC/DC Dual-Use? Sensor powered by Plug-in 110V AC or 4pcs AA Batteries?Package don't include?.Choose one at you convenience. ?Easy Installation?The package inclued all parts you need during installation,you may can install it all by yourself within 20 minutes using hardware.Any questions during the installation process, please feel free to contact us.