New handheld small fan usb charging mini small light sound student dormitory bed for office useMultifunctional Mini Handheld Electric FanTake the cool breeze with youRechargeable/handheld/standableThe brushless motor avoids the frictional noise of traditional motors,Reduce the fan running noise to 30dB, quieter and cooler.Built-in rechargeable lithium batteryRecharge for 90 minutes, cool all day - all day2000mAh power storage, one charge keeps cool for a whole day, and the lightweight design is easy to carry.Power supply: USBProduct features: muteNoise: below 36dBWind speed gear: 3Operation mode: mechanicalWhether to support charging: supportWhether built-in battery: built-in batteryBuilt-in battery capacity: 2000mAh-4000mAhBattery life: 6-8 hoursFan classification: Handheld fanSpeed gear: third gear