Functions: Automatic on/off: Infrared sensor faucet automatically turns on and off. Cold & hot water: There is a mixer within the faucet to adjust water temperature. Time limit: Washing time is set for 60 seconds Low power indication: This may indicate it is time to replace existing batteries with new ones or there is not enough power going to unit.Features: Convenience: When sensor is activated the water begins to flow automatically. To stop flow, simply remove your hands from sensing range. Hygiene: Touchless design provides hands-free and germ-free operation. Water-saving: Water efficient faucet reduces overall water usage without sacrificing water pressure. Energy saving: Battery shall last approximately 7000 times/month for one year. Faucet automatically supplies water as soon as hands are within sensing range. Faucet automatically stops supplying water when hands are out of sensing range.