Using this towel dispenser is a breeze. First, load a suitable 8 - inch wide towel roll into the dispenser. If you choose to use batteries, insert four D - size batteries (they're not included in the package). Or, you can connect the separate C - UL - US and CE approved internal low - voltage adapter to 110 - 240VAC power. Once it's powered up, when you place your hands under the sensor zone, the dispenser will automatically give you a towel. You can adjust how long the towel is by using the length, delay, and paper saver switches according to your needs. When it comes to maintenance, keep the dispenser clean. Wipe it down regularly with a soft, damp cloth. Don't use abrasive cleaners as they might damage the surface. Check the battery levels often if you're using batteries, and replace them when they're low. If you're using the adapter, make sure the connection is secure. Also, be careful when loading the towel roll to avoid jams. That's all you need to know to make the most of your towel dispenser.