The M802 Double Essential Oil Diffusion Aircon Vent Clip Ultrasonic Car Diffuser is designed for drivers who love variety and luxury. Featuring dual fragrance selection, it allows you to switch between two different essential oils for a customized scent experience. Its AI auto start/stop car vibration detection technology ensures effortless operation, automatically activating when the car starts and stopping when the engine turns off. Compact and stylish, the M802 easily clips onto any air vent, dispersing fragrance evenly through ultrasonic diffusion. Compatible with Carlvino Aromas essential oils, it keeps your car atmosphere fresh, relaxing, and perfectly scented every drive.