Using your Bradley Verge Faucet Zen Series is a breeze. Just wave your hand near the sensors and the water will flow thanks to the touch - free dual - sensor activation. You can choose between different low - flow laminar options to get the water flow you like. When installing, make sure to use the centershank and rotation - resistant locking nut to keep the faucet stable. If you want, you can use the AC plug - in adapter, but the standard battery pack with 4xAA alkaline batteries works great too. Keep an eye on the low - battery LED indicator in the sensor package and the indicator lights in the spout to know when it's time to change the batteries. To keep your faucet looking good, avoid using harsh chemicals on the Brushed Black Stainless PVD finish. Regularly wipe it with a soft cloth. Since it's vandal - resistant, it can withstand some rough handling, but still treat it gently. And remember, this faucet complies with ADA guidelines, so it's suitable for a wide range of users.