Using this paper towel dispenser is easy. First, if you choose to use batteries, open the cabinet and insert 4 'D' alkaline batteries. Or, you can connect it to a 6-volt DC power supply. Once powered, place the paper towels inside the dispenser. To get a towel, simply wave your hand in front of the sensor. For safety, always make sure the power is off when you're opening the cabinet. When it comes to maintenance, regularly clean the sensor area with a soft, dry cloth to keep it working well. Replace the batteries when they run out or check the power supply if there are any issues.