Multi functions: Set working time period, system time, operating time period, concentration, and low battery display. Automatic fragrance machine: Intelligent fragrance expander with fluid atomization and four-stage timing for rapid diffusion. Reliable performance: Large range fragrance expansion, four-stage timing, bass operation, fluid atomization, two power supply methods, and power outage memory. Long fragrance retention: Two fluid fine atomization quickly atomizes oil molecules into fragrance molecules with intermittent spray for wider range and longer retention. Wall hanging and seat type: Easy to install and move, suitable for various places with reinforced back hanging. One button replacement of oil: Large top button with 90-degree door opening design for easy fragrance selection and application. Expand fragrance and dispel odors: Nano atomized oil spreads fragrance evenly while natural plant extracts decompose odors. Low noise atomization: <35dB operation without disturbance for natural relaxation. Intelligent power off memory: Built-in storage chip saves settings permanently for worry-free use. Features: Fashionable checkered pattern with PP anti-drop material, intelligent digital display panel, adjustable concentration, and battery/Type C power supply for versatile use.