Expansive Coverage Area: VEVOR's 100ml scent air machine is designed for spaces up to 1000sq.ft, filling your environment with high-quality, stylish scents. Whether wall-mounted or freestanding, it enhances your space with a wonderful and relaxing ambiance, promoting better sleep and improving indoor air quality. Natural & Safe: This scent machine brings the scent with the cold air technology, which avoids any water dilution to the oil, ensuring you could get pure essential oil that is natural and completely safe for children and pets. Use the VEVOR Diffuser to exert the BEST effect of the essential oils. (For pure essential oils only) Bluetooth Enabled Control: Enjoy easy control over power, scent levels, timer functions, and more via Bluetooth connectivity. Adjust fragrance concentration with 10 diffusion levels to suit your preferences. It continues to operate according to preset schedules even when disconnected. 笨納 Tips]: The default password is 8888. Versatile Power Options: Choose between battery-powered or USB charging based on your needs (power cord and battery not included). Unlike traditional scent diffusers, our smart scent air machine requires no water or alcohol dilution for aromatherapy, ensuring a purer scent experience and transforming your space with delightful fragrances. Quiet yet Powerful: Quietly diffuse essential oils throughout your bedroom, bathroom, office, spa, or commercial space, creating a serene and relaxing atmosphere. Let aromatherapy inspire and uplift your senses, enhancing your lifestyle with pleasant aromas. Note: To synchronize with your local time zone, please connect your smartphone via Bluetooth when using the device for the first time.