Fangrui Product Details [upgrated Waterless Essential Oil Diffuser]compared To Other Traditional And Waterless Diffusers, Our Patented Diffuser Uses The Latest Cold Air Diffusion Technology. It Atomizes Your Favorite Pure Essential Oils Into Nano Mist, Dispersing Them Into The Air, Generating Powerful Mist And Fragrance. Without The Need For Water Or Heat, The Essential Oils Remain Undamaged And Undiluted, Preserving Their Natural Scent. [no Need To Remove The Dropper Plug]our Diffuser Features An Innovative Design That Fits 18mm Bottle Thread, Allowing You To Use It Effortlessly Without Removing The Dropper Plug. [3 Intensity Cycle Mode]waterless Diffusers For Essential Oils Has Three Intensity Modes. High Mode:mist 60s,pause 1min. Medium Mode:mist 40s,pause 3mins. Low Mode:mist 20s,pause 5mins. You Can Choose The Mode That Suits Your Needs For Work, Sleep, Entertainment, Sport, Spa,etc. [cordless And Portability Waterless Aroma Diffuser] The Aromatherapy Nebulizer Features A Built-in 2200mah Battery,it Can Support Working Tim