【Dual-Use: Handheld & Desktop Design】This multifunctional fan is designed for both handheld and desktop use. Its compact, lightweight body allows you to carry it easily while walking or traveling. 【Advanced Semiconductor Ice Cooling Technology】Equipped with an innovative superconductive ceramic cooling plate, this fan delivers an instant cooling sensation. The ice-cooling element lowers the temperature on contact, providing a refreshing breeze. 【5-Speed Wind Modes + Stepless Adjustment】Offers five distinct wind speed settings, from a gentle breeze to a powerful airflow. The stepless speed control allows for fine-tuned adjustments, ensuring maximum comfort based on your preference. 【Foldable Design with Hanging Hook】The foldable structure makes this fan ultra-portable and easy to store. Its integrated hanging hook lets you conveniently attach it to backpacks, tents, or hang it anywhere for hands-free cooling. 【Rechargeable and Energy Efficient】Powered by a built-in 3000mAh rechargeable battery, this fan delivers long-lasting performance with minimal energy consumption. Specifications: Product model: Y58 Battery capacity: 21700 battery 3.7V 3000mAh *1 Input voltage: DC5V Charging current: 1A Fan working voltage: 1st gear working voltage: 5V 2nd gear working voltage: 6V 3rd gear working voltage: 7V 4th gear working voltage: 8V 5th gear working voltage: 9V Input power: 4W Fan usage time: 1st gear usage time: about 9h 2nd gear usage time: about 6h 3rd gear usage time: about 4h 4th gear usage time: about 3h 5th gear usage time: about 2.5h Fan + cooling usage time: about 1-2h Motor speed: First gear: 5500rpm Second gear: 6200 rpm Third gear: 7200rpm Fourth gear: 7800rpm Fifth gear: 8400rpm Wind speed: First gear: 3.1m/s; Second gear: 3.8m/s; Third gear: 4.6m/s Charging time: about 4H Material: ABS/PP/electronic components Package included: 1 x Cooling Fan 1 x English and Chinese User Manual