The automatic sensor faucet with its "Touch Free" advantage eliminates a major source of cross-contamination and encourages thorough healthy hand washing. It is totally hand free operation, when you hold your hand and reach the sensor range, the water comes out automatically from the faucet, the hot/cold water tap design making your can getting warming water without touching the faucet in the during the cold winter. Sensor technology also specializes in cost control, It immediately reduces waste by eliminating unnecessary and unattended water flow, Save up to 70% on water cost associated with faucet usage. High-tech and luxury stainless design also convey a high-end image for being use this stylish product.