Waist Fan and Necklace Fan 2 in 1 You can clip the personal fan on your waist, cooling your body quickly. The fan has an extra necklace strap, you can hang the fan on your chest as a necklace fan. Long Working TimeBuilt with 6000mAh large capacity Polymer battery, the portable waist fan supports up to 15.5 hours.High speed 4.5H, Mid speed 10.5H, Low high 15.5H. [ Upgraded Strong Wind ] The new upgraded 6200rpm motor blows a 7.5m/s strong airflow. Fast wind takes away your body heat within seconds. No more struggling when working or travelling under the sun. [ Flexible Fast Charging ] 2A fast charging supported, the fan can be fully charged in about 4 hours via wall charger, laptop and other USB-enabled devices. [ Wide Range of Use ] Personal USB fan is great for home, office, desktop, travel, outdoor, car, camping, beach, yard work, sports etc. Best gift for friends, family, women, men, girls, boys, students and children in hot summer .