Whether it is the back of the hand or elbow, just touch the body of the pull down kitchen faucet body or bend, you can easily turn on or off the water flow, reducing the potential for cross-contamination. In addition to being able to touch on, it also has an automatic shut-off function. When doesn't need water, sensor kitchen faucets will turn off automatically in 3 minutes, helping to conserve water.OEM & ODM is available.