Set of 2 and Powerful Airflow: The package includes two mini fans, providing great use for money. The fans have a power of 0.2W and are equipped with four blades, providing a strong airflow that keeps you cool and refreshed even in hot weather. Clip-On Design: Our hat fan features a clip-on design that is suitable for most hats. It is easy to install and remove, providing a hands-free and convenient cooling experience. Simply attach it to your hat and enjoy the refreshing breeze. Compact and Portable: Our solar fan is compact in size, with the fan measuring approximately 7.5cm/2.95 inches and the solar panel measuring about 5x6cm/1.97x2.36 inches. It is lightweight and portable, allowing you to easily carry it in your pocket or bag wherever you go. Versatile Usage: Our hat fan has a wide range of applications and can be used in various situations. Whether you need a handheld fan, want to cool down your car, or engage in outdoor activities such as camping, hiking, fishing, or climbing, this fan is the perfect companion to keep you cool and comfortable. Solar Powered and Energy Efficient: Our clip-on fan is powered by solar energy, eliminating the need for batteries or switches. It operates only when exposed to direct sunlight, making it an eco-friendly and energy-efficient thing. (Recommended for use in strong direct sunlight)