Wireless Operation Rechargeable battery provides cordless convenience for your car, offering up to 8 hours of continuous fragrance diffusion while traveling without needing constant charging. 3 Adjustable Modes There are 3level adjustable diffusion settings to the aroma intensity, allowing you to create the scent atmosphere whether you prefer subtle freshness or stronger fragrance coverage. Starry Projection Feature Transform your car interior with starry light patterns that create a tranquil driving environment while effectively freshening car air with your chosen essential oils. Auto Functions Automatically activates when your car starts and turns off when ignition stops, with memory function that retains your preferred settings for a consistent aroma experience every drive. Use scenarios Daily commute: Set to a subtle to moderate diffusion for a fresh, unobtrusive scent that activates with the car and remembers your last settings for a consistent experience. Long road trips: Use higher diffusion for a noticeable fragrance along with the starry projection to enhance the cabin atmosphere over extended drives. Car share or rental: Memory function helps preserve your preferred aroma and lighting setup across multiple sessions, ensuring a familiar environment each time.