Solar Powered and Energy-Saving: Our clip on fan is solar powered, eliminating the need for batteries or switches. It operates solely under direct sunlight, making it an energy-saving and eco-friendly option. (Suggest to use under strong direct sunlight) Compact and Portable: Our hat fan is mini-sized, with dimensions of about 7.3cm/2.87inch for the fan and 6.5cm/2.56inch for the solar panel. It is compact and portable, allowing you to easily carry it in your pocket or bag wherever you go. Wide Range of Uses: Our hat fan is versatile and can be used in various situations. Whether you need a handheld fan, want to cool down your car interior, or are engaging in outdoor activities like camping, hiking, fishing, or mountain climbing, this fan is the perfect companion to keep you cool and comfortable. Powerful Airflow: With a maximum speed of 2800RPM, our solar powered fan provides a powerful airflow, keeping you cool and refreshed even in hot weather. It is perfect for combating heat and humidity during outdoor activities. Clip On Style for Convenience: Our hat fan features a clip-on style, making it suitable for most caps. It is easy to attach and take off, providing a hands-free and convenient cooling experience., Weight: 0.1543235834 pounds, Manufacturer: Veesper_A74_5414205