Features: High-quality materials: Made from quality materials with natural plant extracts, this car aromatherapy diffuser is safe and reliable for use. Wireless design: The car diffuser features a built-in rechargeable battery with long standby time, allowing for convenient use. (Note: The standard model is plug-in powered and not wireless.) Multifunctional design: Equipped with an intelligent chip, the diffuser automatically detects when you enter or exit the vehicle, enabling automatic start and stop functions. It offers 5 adjustable aroma intensity levels, with a digital display for easy level monitoring. Projector lamp: Designed with a projector light that projects onto the car ceiling, creating a pleasant and ambient atmosphere. Excellent gift: This car aromatherapy humidifier makes a great gift for family, friends, partners, or colleagues during holidays such as Christmas, Thanksgiving, Easter, birthdays, and more. Notice: * Actual color may vary slightly due to lighting effects. * Please allow 1–3 cm deviation due to manual measurement. Material: Aromatherapy device: Metal Size: Aromatherapy device: 110 x 65 x 65 mm Perfume bottle: 67 x 45 x 45 mm Cotton swab length: 9.5 cm Perfume net content: 50 ml Note: The standard version is plug-in powered, not wireless, does not include a projector, and has only three adjustable levels.