DUAL FAN HEADS DOUBLE COOLNESSEquipped with a brushless motor and 100% pure copper crafted fan spindle, Hayousui dual head fan for car generates a robust and steady flow of cool air. This advanced design not only disperses heat efficiently but also ensures supreme double-cooling for both baby and pets in front and back seat, while maintaining an impressively low noise level below 30dB. It ensures that passengers resting in the car remain undisturbed2 INDEPENDENT CONTROL FAN HEADS & LED LIGHTBoasting 3 adjustable wind speedslow/medium/highyou can effortlessly fine-tune the airflow of car seat fan to match the current ambient temperature. This customization allows you to achieve optimal comfort tailored to your preferences. With the ability to control each fan head independently, you can easily switch on one fan or both. Additionally, each fan head comes equipped with an adjustable LED light that offers two levels of brightness, enhancing visibility during nighttime drives.360 ROTATIONDesigned for versatility and convenience, this car fan for backseat can be bent 360 degrees vertically and horizontally thanks to its flexible silicone hose. Which enables you to easily adjust the fan angle, delivering cooling comfort to every corner of the car. This ensures a comfortable environment for babies or pets seated in the rear, while its compact and lightweight design saves valuable space. Safety is prioritized with a finely crafted grid that prevents small fingers of kids from coming into contact with the bladesEASY TO USEPowered by a USB connection, this 5V/2A auto fan is highly versatile and compatible with various devices, including power banks, car chargers, laptops, computers, and AC adapters. It seamlessly integrates with most 12V/24V car models like vans, trucks, SUVs, and RVs (no battery required). Energy-efficient and environmentally friendly, this fan is not only practical but also promotes sustainable practices. Installation is straightforward, utilizing a spring clamp that can be easily attached to the middle of the headrest bar.WIDE APPLICATIONIdeal for car, boat, and vehicle owners, the car circulation fan is a must-have accessory. This energy-saving truck fan occupies minimal space and can be adjusted to various angles as needed. The headrest fan for backseat excels at removing moisture from the windshield on cold, rainy days and reducing hot air, cigarette smoke, or dust. Moreover, it effectively eliminates unpleasant pet odors, ensuring a fresh and clean environment for all passengers.