• Electric car air freshener with ultrasonic atomizer and micro-sensor chip for automatic on/off • Nanometric nebulization technology that turns essential oils into fine particles, quickly and silently eliminating odors • 50 ml bottle of natural fragrance, alcohol-free and additive-free, safe for all users • Three adjustable spray modes: light fragrance (1 spray every 3 minutes), intense (1 per minute), and continuous mode (10 minutes) • Built-in 500 mAh battery, lasting from 13 to 164 hours per charge, depending on usage mode • 7-color ambient light and star projector for a pleasant and relaxing atmosphere in the car • Made of high-quality aluminum alloy, strong and durable • The 50 ml perfume lasts 4 to 6 months and can be refilled with pure essential oils • Does not require frequent replacements, making maintenance and time-saving easier