Smart Nozzles - M24 male and M22 female tap nozzles. The touchless faucet adapter turns your ordinary kitchen faucet into a smart automatic faucet with motion sensor. Timed protection against dirt - Quick detection in 0.1s, smart and convenient, no need from touching the faucet and prevents bacterial cross-contamination. When the water is used for more than 3 minutes, the magnetic valve will automatically close to prevent overflow, and the detection will return to normal water, which effectively avoids waste by the user and careless users. Water-saving design: The smart faucet features an integrated flow design that responds quickly to water switching, saving time and limiting water flow, which guarantees a flow rate of 0.07 l/s at a rate of 0.1 mpa - a considerable water saving. Durable - The smart faucet is powered by a USB rechargeable lithium polymer battery, eco-friendly and energy efficient, with a long battery life of over 9 months and a flashing light alerts you when the battery is low.