[15 Levels Simple Physical Adjustment ] A winning feature of the automatic soap dispenser touchless is you can adjust the volume of soap discharge, simply by turning the knob on the top of the dispenser. The discharge volume stays consistent until changed, thus ensuring there is no wasting of the liquid soap. [Fantastic Battery Life] 3 AA alkaline dry battery (not included) will allow you to enjoy hands free soap dispenser for up to a year before having to change batteries, not over consume battery. [Shoot Out The Thick Soap Well] The automatic soap dispenser compatible with both thick and thin liquid soap ,the thicker soap does not need dilution! Direct discharge of stock solution! The wide opening to the soap compartment makes it easy to fill with soap and the see through vertical window makes it easy for you to know when a refill is needed. [Much Easier For Toddlers] The hand soap dispenser is much easier for toddiers to get soap on their hands with the minimum level. Enhanced design to prevent clogging and random dripping!