Specifications: Material: Stainless steel Battery: 4pcs AAA battery (not included) Capacity: 280ml Height: about 185mm Diameter at base of container unit: about 7.5cmOperation: Place batteries in the battery compartment as shown in diagram above. Please refer to batteries section for instructions Unlock the top cover by turning it anti-clockwise. Gently pull cover to remove. Fill the compartment with soap. Please make sure that the soap does not contain solid particles in order to avoid clogging To switch on， press and hold the on/off button for 3 seconds and do the same to switch off To adjust volume of soap dispensed， press on/off button once Repeat step 4 until the desired volume. There are 3 adjustable levels Place your hand under the sensor(light indicator) to dispense soapPackage Included: 1x Automatic Soap Dispenser