3 IN 1 Travel Portable Cell Phone Mini Fan Cooling Cooler For Micro USB C For iPhone 5 6 6S 7 Plus 8 X for Android Type-c

Model Number:usb gadgets

1. For Android micro interface, phone need OTG function to support fan.
(Some phones need to turn on the OTG function in the settings)
2. For Android type-c interface, phone need OTG function to support fan.
(Some phones need to turn on the OTG function in the settings)
3. For All Iphone, itself has OTG function.