Awei F23 Mini Portable Fan 4 Speeds 4000mAhBrand: AweiModel: F23Input voltage: 5V/2AOutput power (MAX): 5WTuning: 4-speedBattery Capacity: 4000mAhNew Low Noise Fan Cooling with big airflowSimulate natural wind4 speeds adjustable with different windButton operationDesktop fan stable360′ wide-angle wi..