JISULIFE Handheld Fan with 4500 mAh Powerbank Max 46 Hours Runtime,Pocket Fan Portable Battery Operated or USB Powered Folding Personal Fan,3 Speeds,Gifts for Women Men Kids Gift for Festival-White

【Super Long Endurance and Updated Strong Airflow】Adopted the advanced technology, it lasts for 46 hours at speed 1, 35 hours at speed 2, 13 hours at speed 3 after about 3-4 hours full charge. With enlarged blades, the wind increased 30% compared to the original version.The maximum rotating speed of the fan is 3400 rpm which is enough for personal use to keep you cool.