Long Lasting Scents Increase Sleep Quality: Essential oils can evoke feelings of calm. Our essential oil diffusers large 400ml water tank outputs fresh scents for up to 13 hours for deeper sleep Enhances the Ambiance of Your Home: Colors can impact your mood, that's why our fragrance diffuser comes with 7 color LED lights to choose from •Stops Running Once Tank is Empty: As an added safety feature, our air diffuser for essential oils automatically shuts off once it has detected an empty water tank •Fully Customizable Room Diffuser: With our large diffuser, you're in control. Adjust the color settings, set to bright or dim lighting, and choose between high or low mist output settings •Cleaning Kit Included: We want you to be able to rely on your diffusers for home when you need it, providing a cleaning kit so you can keep your diffuser set operating at its peak please look through all photos and ask if you have any questions :)