MADHOLLY USB Phone Fan, Fashion Portable Mini USB Fan for Samsung Galaxy, HTC, HUAWEI and Other Smartphones Orange The fan is unique bendable design, slim and light weight USB fan keep you cool on hot days. Low power consumption, soft wing and safe. Perfect design for easy storage no matter travelling,office,home and after Gym. Low noise, and mini size design means you can take it with you just about everywhere you go. Motor revolutions 15000 turn and can work continuously more than 100 hours.