HIGH PRECISION SENSOR- Automatic soap dispenser uses the latest infrared automatic induction technology that fast foaming speed at 0.25 seconds. An infrared sensor can detect your hand in 5cm, making foam more accurately. No dripping or tailing, no wasted soap. The touch-free automatic distribution operation can effectively avoid cross-infection (effective antibacterial 99.9%) High-QualityUsing ABS plastic, ABS plastic has high impact resistance, high mechanical strength, wear resistance and moisture resistance.Lab test more than 200,000 times without problems. Powered by 4 AA batteries, one replacement can be used for about 4 months. Observable Capacity280ml/9.5 OZ capacity with visible volume, check volume at a glance.And variable dispense control soap volume by adjust +/- switch to control the liquid volume from 1.5 to 3ml. Low decibels of running sound, it won't bother you when you use it. SAVE LIQUID CONSUMPTIONUsing innovative foam pump technology to convert liquid into foam, it can save more than 50% of liquid. Dilute your favorite hand sanitizer with water in a ratio of 1:3 (liquid: water) . In addition to hand sanitizer, it is compatible with various liquids such as facial cleanser, shampoo, shower gel, dish-washing liquid, lotion, and disinfectant. Ideal for shower, hand washing and dish-washing. EASY TO CLEAN- Automatic soap dispenser with IPX4 waterproof design can be wiped with damp towel, but don't flush the unit with strong flowing water and put it upside down. Any question please contact us, we will do our best to let you have a happy shopping experience.