Features: 1) Infrared sensor operated, touch-free operation 2) Advanced energy saving design for long lasting battery life 3) Waterproof sensor 4) Battery low LED light indicator 5) Sensing distance adjusted automatically 6) Long life durable body 7) Advanced circuit design saves electricity and water 8) Battery: 4 x AAA size cells 9) Operational water pressure range: 0.05 - 0.6mPa 10) Water supply pipe size: DN15 11) Ambient temperature range: 0.1 - 45°C 12) Sensing distance: Factory set 17CM 13) Time delay: 0.5 seconds 14) Operation duration: power will automatically cut off after continuous use for 60 seconds 15) Pop-up drain: yes 16) Color: chrome Function: 1) Water-saving: Water flows out when your hands approach it and stops immediately 2) Hygienic: Self-open and close to free hands from any touching, which can efficiently avoid bacteria mutual infections. 3) Intelligent: With its micro-computer to controlling its action, the faucet can self adjust its best detection zone as per the color and shape of lavatory. 4) Low power consumption: For DC flushers, 4AAA alkaline batteries can be used for 2 years at 200 cycles a day. 5) Convenient to maintain: There is a strainer inside to prevent sundries from entering the solenoid valve and the strainer is easy to clean. Samples: send against received your samples fee and shipping charges. Inner packing: 1pc/box Each piece with Styrofoam is packed into one inner box (color or white box). Box dimensions: 26X22.5X15.5CM Outer packing: 8pcs/carton Carton dimensions: 47X28X65CM