Mini Cellphone Fan ArunnersTM 2 pack Quality Portable 2-in-1 Android USB+MicroB OTG Dock Cool Cooler Fan for Samsung/HTC/SONY/LG/Motorola and Other OTG Port Android Device/ Portable Charger -Red One of the coolest summer gadget for smartphone at 2016.Mini, lightweight and portable, you can carry it anywhere and use it anytime. Individual fan function, there will not be any impact on the cellphone, very low battery consumption, the rated voltage: 5V. You can use the smartphone and enjoy the fan at the same time. Compatible only with OTG with android, USB, microB dock. Can used as USB fan, a scalable mobile lightning interface power supply and power bank phone charger. Simply plug the mini rotatable fan into cellphone micro 5-pin dock or portable power bank USB dock, you can enjoy the soft wind immediately. MicroB 5-pin dock is built inside the USB, you can easy push it out. Caution: DONOT put the fan too close to the face, eyes and hairs, it may harmful. DONOT give to under age 6 years old kid to use.