Fast Cooling: With a powerful motor, bringing you instant coolness on hot days. Its design provides a comfortable and cool feeling. Super Power Motor: The brushless motor and a 5000mAh battery. Faster than ordinary small fans, reaching up to 10000+ RPM. A charge can provide cooling for up to 15 hrs. 1-100 Wind Speed: allowing for 1-100 speed adjustment of the wind speed. This small fan also has a visual display to show the current speed and power. Portable Small Size: This portable fan is compact, measuring just 0.5lb and 6*2.4*2.3 inches with an anti-lost lanyard, This handheld fan can make you cooling. 12 months Warranty: Our warranty is 12 months. If you have any product questions, please feel free to consult us.