1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 lbNormal0 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 lbNormal0 Portable Three-Speed Adjustable Mini Fan Key Type Pocket Fandescription:Three wind speed20-40db ultra-small muteUSB interfaceStrong and steady windLow energy consumption,specification:Wind speed: 3 modes (high/medium/low)Noise: 20 to 40 decibelsWorking time: 2-4 hoursProduct size: 15X8X3.2cmBattery capacity: 600 mAhPower: 2.5WCharging voltage: DC5V-package:1 fan1USB charging cable