Portable Handheld Fan 30000mAh Turbo Fan with Ice Cooler Electric Fan for student on the way to school Neck hanging fan

Ice coller: Ice cooling fan, 3s rapid cooling.Battery: Built in 3000mAh rechargeable battery for long-lasting blowing and coolingPortable: Mini portable size for outdoor hiking, traveling, camping, etcSpeed level: 4 gears high speed wind adjustableSpecifications:Battery Voltage: 3.7vCharging Voltage: DC5VCharging time: 2HWork time: 0% speed:12H, 25% speed:8H, 50% speed:6H, 75% speed:4.5H, 100% speed:4HBattery capacity: 3000mAh (Legit)Motor:9V (brushless motor) (16.88zz/477H)Motor Speed: Lowest gear: 5000 rpm, Highest gear: 10500 rpm (±10%)Number of Blades: 5