Directions To use, fill the 300ML tank with water, add a few drops of essential oil, turn on the diffuser using the remote control, and adjust mist intensity and light color as desired. For extended use, refill the tank every 8 hours. Always unplug the device when not in use and clean it regularly to maintain optimal performance It also functions as a night light. Ultrasonic Technology: Features ultrasonic technology for silent operation, ensuring it won't disturb your work or sleep while effectively dispersing essential oil scents. With an 8-hour run time, there's no need for frequent refilling. 7 Color Gradient Night Light 300ml Quiet Aromatherapy Essential Oil Diffuser, Raindrop Design, 7 Color Night Light Timer, Remote Control For Bedroom, Office, Meditation Scenarios (US Plug Vape Amazon Multifunctional Design]This rotating raindrop-shaped aromatherapy diffuser doubles as a humidifier, creating a serene atmosphere perfect for relaxation... Remote Control Operation:1: Remove the insulating tabs on the remote control before using it. 1 300ML capacity 2 Remote Control 3 Let You Relax Better 4 Provide More choices Aazon.co: SEEDSEEL 300L Essential Oil Diffuser,Ultrasonic 3: When using the remote control, aim the buttons on the diffuser to set it.