4000mA Mini Portable Hanging Neck Waist Fan USB Rechargeable 3 Speed Adjustable Outdoor Sports Mini Air Conditioning Leafless Cooling FanFeature:Adjustable air outlet. The adjustable air outlet makes this portable belt fan more popular with workers, providing drivers and sports enthusiasts with the ability to blow powerful winds on themselves at will. Stronger power. New upgrade, 3-speed more powerful, with 4000mAh high-capacity battery, 3H-16H continuous working time, with this mini neck fan, you don't have to feel hot anymore. Wide in Use: The fan can be used with USB chargers, laptops, computers, car chargers, and other USB-enabled devices. suitable for long time indoor outdoor use. Portable size. To fit in your pocket or bag, so you always have it within easy reach. Supports 5V/2A fast charging and can be charged via USB power and Type C devices, in this case these belt clip fans can be charged via wall chargers, mobile chargers and car chargers. No need to buy batteries. This mini necklace fan comes with a removable front cover and a cleaning brush. When it gets dirty, just push the cover off and clean the fan with a damp brush or cloth. Once again you will get a brand new nice mini fan. Specification:Product name: waist hanging fanProduct size: 109x80x49mmBattery type: polymer lithium-ion batteryPacking size: 150x100x55mmBattery capacity: 4000mAh (3.7V/14.8Wh)Motor Type: Brushless MotorRated power: 5V/2AWorking hours: 3-16 hoursCharging time: 3--4 hoursNet weight: 220gOverall