Car Aroma Diffuser: Rechargeable and wireless design with a 500 mAh battery for lasting use without constant charging, ideal for long journeys in your vehicle. 3 Adjustable Modes: There are three adjustable modes that can change the fragrance intensity from subtle to rich with intelligent diffuser technology to create a suitable atmosphere during every drive. Starry Projection Feature: The car aroma diffuser has a starry projection feature that can transform your car interior with enchanting light patterns, creating a tranquil environment and making every trip more enjoyable and relaxing. Intelligent Operation: It automatically activates when you start your car and turns off when the engine stops, with a memory function that recalls your last settings. Use scenario: On long road trips or weekend getaways, set a low to moderate fragrance level to maintain a fresh, relaxing cabin without overpowering scents. Use scenario: During daily commutes, choose a subtle fragrance and enjoy the starry projection as a gentle ambient light for a calmer start and end to the day. Use scenario: When driving with passengers, the memory function loads your preferred settings automatically for consistent comfort on every trip.