Product Parameters: Product size: 58*68*163mmProduct weight: 175gBattery capacity: 2200mAhCharging time: About three hoursRated power: 5WRated voltage: DC5V/1AUSB Type: Type-C usbProduct Function: 3 second immediate cooling,cool anywhereWorking time: 1st equipment about 9 hours,2nd package about 6 hours,3rd gear about three hoursPackage Include:1*Fan1*USB Cable1*User Manual Dear Customers: Thanks in your have confidence and order very much. If you're satisfied with our product, please leave us a 5 stars fantastic review. We will do increased with your kindly support. If there's any subject with our product, please contact with us first earlier than depart a neutral or dangerous feedback, we can provide you with an acceptable solution, the bad feedback can't remedy any problem or retrieve a loss.