USB Ultrasonic Diffuser Leo: compact and easy to use, with a natural and round design that easily fits into your home, office, or bedroom. Why choose the Leo diffuser? • Ultrasonic technology: Cold diffusion preserving the properties of essential oils, ideal for aromatherapy. • Benefits: Also serves as a humidifier, improving air quality and respiratory comfort. • Compact size: Ideal for small spaces like a child's room or office. • Design: Harmonious shape, wood-style finish, and customizable colored LED lighting. • USB connection: Comes with a USB cord, can also be plugged into a power outlet with an adapter (not included). Operation: Fill the tank with water and essential oils, start diffusion with the button. Automatic shut-off when the tank is empty. This product has a USB plug (power adapter is available in our store).