Big Capacity & Multiple Use: 14oz (400ml) capacity makes it the perfect touchless liquid dispenser, can be filled with , body washing liquid, shampoo, dish washing liquid, laundry detergent liquid and etc liquid. Easy to Install and Use: 4 pcs AAA battery(Without Battery) is required for this dispenser. 't need to install , just put it on the flat where you want, for example place on the restroom and kitchen sink counter-tops, place on the bathroom shelf etc. Also can be filled with and put on and school tables etc. Sensor Soap Dispenser:Compared with other dispensers, automatic soap dispenser uses Precise infrared sensing technology to provide you with a non- experience, which gives you the touchless experience and dispense soap consistently and quickly within just 0.26 seconds. Waterproof & Streamlined Body: This touch-less soap dispenser with IPx6 waterproof design of the whole body, it is washable. The bottom adopts anti- design, streamlined body is beautiful and stylish. Please NOTE In the first use, the sensor soap dispenser needs to be sensed 2-3 times to allow the straw to fill with soap (NOT for gel) ; When installing the battery, please check "+" and "-".