Tips: 1. When you use soap dispenser first time, please be patient as it takes time to work. 2. To switch on, press and hold the on/off button for 3 seconds and do the same to switch off. 3. To adjust volume of soap dispensed, press on/off button once. 4. Repeat step 3 until the desired volume. There are 3 adjustable levels. 5. Place your hand under the sensor to dispense soap.