Description: Features: TPE environmental protection blade, no hurt to your hands when unexpected touch. Type C+Micro USB small fan, low power consumption,Can use mobile phone for power supply. Powered by Micro USB female port or Type C port,For Androids cellphones or tablet with OTG function. You can also use a USB male to Type C female adapter or USB to Micro USB female adapter connect to this fan,then connect to Powerbank USB Charger or PC also can work(adapter is not included) The Androids cell phone must with otg function (How to Check OTG? Download free app "USB OTG Checker"). For Smart phone/Laptop/tablet/Wall charger with Micro USB or Type C port Specifications: Item Type: Type C+Micro USB Cooling Fan Material: Plastic, Metal Color: Blue/Orange/Green(Optional) Fan blade length: 8.5cm Quantity: 1PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X Type C+Micro USB Mini Fan