Using your eysun Fresh Fruit Juice Cup is a breeze. First, open the cup and put your favorite fruits inside. Then close it tightly. Press the power button to start the automatic mixing function. The blender will quickly turn your fruits into delicious juice. When it comes to charging, simply connect it to a power source using the provided cable. Make sure the battery is fully charged before the first use. As for cleaning, you can rinse the cup and the blender parts with warm water and a mild detergent after each use. Don't forget to dry them thoroughly to prevent any damage. Also, keep the product away from water when it's not being cleaned and avoid using sharp objects to touch the blender blades. This way, your juicer will serve you well for a long time.