UNPARALLELED AROMA: This aroma diffuser with pure essential oil blends to choose from, waterless scent diffuser release fresh, natural scents to fill your home with comfort and relaxation.TOP-QUALITY MATERIALS: Those essential oil diffusers made with the finest materials, this oil diffuser ensure durability and long-lasting performance.NOTE 1: This is professional essential oil diffuser. We recommend using pure essential oils to avoid clogging the atomization port, to avoid reduce the machine's service life. (NOTE: This version is Updated Version, CANNOT use APP to control!!! If you wanna try APP control, please select APP Control.)VERSATILE USE: This diffusers for home perfectly, offices, and more. Our oil diffuser essential oils create a calming, uplifting environment no matter where you are.PORTABILITY AND CONVENIENCE: This essential oil diffuser with its compact and lightweight design, our scent diffuser is easy to move and use in various locations, allowing you to enjoy the benefits of essential oil diffusion wherever you are.EASY TO USE: This aromatherapy diffuser is easy to use and we provide professional guide videos, our essential oil diffusers provide effortless operation and peace of mind.Full bottle of 50ml essential oil: can use about 1-2 months in Level 2. Cover about 50-100m(540 sq.ft-1000sq.ft)NOTE 2: This version is MANUAL OPERATION Only. Using Power Button to adjust the waterless essential oil diffuser working level(down lights). Level 1: working 5s, pause 300s; Level 2: working 5s, pause 120s; Level 3: working 5s, pause 55s; Level 4: working 5s, pause 10s. Using Time Button to adjust working time from 2-8 hours(up lights), if the up 4 lights are all off, the essential oil diffuser will work whole 24 hours. We recommended: Level 3/4 for 1 hour, and then change Level 1/2, it all depends on you.