Feature: 1. Multi Functions: Set working time period, system time, operating time period, concentration, and low battery display. 2. Automatic Fragrance Machine: Intelligent fragrance expander, always fragrant, as if immersed in a sea of flowers. Fluid atomization, four stage timing, rapid diffusion. 3. Reliable Performance: Large range fragrance expansion, four stage timing, bass operation, fluid atomization, two power supply methods, power outage memory. 4. Long Fragrance Retention: Two fluid fine atomization, exposure to flowers, quickly atomize oil molecules into fragrance molecules, intermittent spray, with a wider range of fragrance extension and longer fragrance retention. 5. Punch Free Wall Hanging and Seat Type: Easy to install, unrestricted to move, suitable for use in various places, reinforced back hanging to prevent falling. 6. One Button Replacement of Oil: Large button on the top, 90 degree door opening design, choose your favorite fragrance, and easily apply oil. 7. Expand Fragrance and Dispel Odors: Not only does it expand fragrance, but it can also dispel odors. The oil is nano atomized, and the fragrance spreads evenly. Coupled with natural plant extractoil, it efficiently decomposes odors and emits fragrance. 8.