- Applicable Models: Designed specifically for DS 4 models from 2021 to 2023, this Solar Car Vent Fan offers dual power options for effective auto cooling. - Triple Power Supply & Efficient Cooling: This fan operates using solar energy, batteries, or USB charging, providing continuous airflow that quickly reduces cabin temperatures. Perfect for hot summer days or long road trips. - Ultra-Quiet & Energy-Efficient: Featuring a cutting-edge brushless motor, this solar car exhaust fan operates at less than 25 decibels, ensuring a quiet experience. Its low power consumption makes it ideal for daily commutes or relaxing breaks in the car. - Simple Installation: The fan's adjustable clip-on design allows for easy attachment to car vents without the need for tools. Enjoy a plug-and-play setup with no wiring required. Use Scenarios: 1. On a hot day, use the fan to keep your car's interior cool while parked, preventing heat buildup and making your return more comfortable. 2. During long drives, keep fresh air circulating to enhance passenger comfort, especially on extended trips or family vacations. 3. Ideal for daily commutes, this fan helps maintain a pleasant cabin environment, making your drive to work more enjoyable. With its practical design and efficient performance, the Solar Car Vent Fan is an essential accessory for any DS 4 owner looking to enhance comfort and air quality in their vehicle.