Fan Specifications: The rated voltage:5V Rated Power:1W Size:43*30*89.3mm Material: hard TPE plastic Touch switch for turn on/turn down 2 port Design,one for iOS system,another one for Android system Compatible with: iPhone/iPad/Samsung/HTC/SONY/LG/Motorola and Other Android Mobile Phones with OTG Function,Mobile Power and Power Bank. Using Graphic: 1.Assemble the fan. 2.Insert the USB interface into the mobile power supply. 3.Take out MICRO 5PIN connector. 4.The MICRO 5PIN insert OTG function of mobile phone interface. Package: 1* 2-in-1 mobile fan. 1* user manual