1. Power supply mode: The fan is powered by USB power supply, which is convenient and easy to use. 2. Rated voltage and power: The rated voltage of the fan is 5V, and the rated power is 4.1W, which meets the general standards of electronic and electrical products. 3. Noise: The fan noise is lower than or equal to 36dB, providing a quiet environment for use. 4. Timing function: The fan does not have a timing function, and the running time of the fan needs to be manually controlled. 5. Wind type selection: This fan supports natural wind, which can not only enjoy a comfortable breeze, but also promote air circulation. 6. Air supply mode: The fan supplies air by turning pages, which can blow the wind to different angles and positions. 7. Wind speed gear and operation method: This fan provides 6 wind speed gears for users to choose, and adopts mechanical operation, which is easy to master. 8. Whether it supports charging: This fan supports charging, which is convenient to carry when going out. 9. Falling self-stop: This fan does not have the function of falling and self-stopping, so please pay attention to safety when using it. 10. Air supply type: This fan supports natural wind, allowing you to enjoy the natural breeze for more comfort.