Review on TENKEY USB C Mini Fan 6-Pack - Portable Type-C Mobile Phone Cooling Fan for Samsung Galaxy S8/S8 Plus, Google Nexus 5X, Huawei P9 - USB Type-C Phone Fan by Jake Pavelko

They also didn't fit in my phone case so I used a string cutter to cut the plastic on the connector. Also, I've found that if you plug them in occasionally, they sometimes don't work. All you have to do is connect your phone to the charger for a few seconds and then connect the fan. Also, after a while they just stop working and you have 5 left. Otherwise, I LOVE MY FAN. It is best to keep them in a zipped pouch when carrying them in your bag/purse as the fan blade may detach.