1.Smart Car Air Freshener Diffuser: The smart car air freshener can turn on and automatically, which makes it convenient for you to adjust the scent freely. By detecting the air conditioning in the car and matching the ambient light, you can automatically adjust the scent duration to maintain a comfortable atmosphere in the car.2.Premium Material: This reable car air freshener is made of quality aluminum alloy material, sturdy and reliable. 220MA lithium battery, 60 minutes charging, up to 45 days of battery life. No need to frequently, suitable for long-term use.3.Three Spray Modes: This car essential oil diffuser has a projection light and three spray modes to meet different needs. Light scent: green, spray 0.2 seconds every 300 seconds. Normal: blue, 0.2 seconds every 90 seconds.4.Strong scent: , 0.2 seconds every 10 seconds Multifunctional design: This long-lasting car air freshener is not only practical and stylish, but also easy to use, whether you use it as a car diffuser, decorative accessory or holiday gift, it can meet your needs.5.Easy to use: It is easy to use and suitable for everyone. All you need to do is open the essential oil bottle and insert the straw into the bottle. Insert the bottle from the bottom and tighten it clockwise. Finally, long press the switch to turn on the power, adjust the desired mode and place it in the appropriate position.