AUTOMATIC SOAP DISPENSER - The soap dispenser with -in sensor can automatically identify the closed hand and dispense soap liquid. 2-3 inches is the best sensor distance. 1 ml of soap liquid each time and holds the position for 2 seconds for another time donation. Leak Prevention / Waterproof: Make the sensor screen is clean.Sealing ring is attached not only to the battery box lid but also to the top spout lid for waterproof function. The waterproof protects the battery case from water. AAA waterproof and leak proof technology to prevent circuit board corrosion by soap or water. Battery operated without cord: Slim and compact without cord. Just open the bottom to expose the battery compartment, you need a 4xAAA battery (sold separately) and can be used for about 6 months. APPLICATION - The soap dispenser is powered by four batteries (not included), without restricting the cord, making it convenient to place anywhere. The soap dispenser is Perfect for restaurants, hotels, kitchens, bathrooms, hospitals, etc. WATERPROOF - The soap dispenser with IPX6 waterproof function, which effectively prevents splash water from getting into the electrical internal component, Perfect for bathroom . size:145x72x223mm Material:ABS colour:Silver Package Contents: 1 * dispenser Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.