TAKSON USB LED Clock Fan Portable USB Fan with Clock Green LED Light Display Real Time Mini Gooseneck Fan for Laptop PC Materials:This usb fan blades are made of soft PVC materials,doesn't hurt anyone if you accidentally touch it. Real time Display:Green LED time display.After the time has been set, even when the fan is off and unplugged, the next time you turn it on,the time will still be correct. Widely compatible:usb led fan is cool design and convenience accessory in office,room,camping.Works on any USB outlet you could find,USB port PC,charging treasure,USB plug. Easy to use:The flexible adjustable gooseneck of this USB fan can easily be bent in any direction as desired. No drive, just plug clock fan into a USB. Compact and Light Weight: it's very convenient to carry or put it in your bag when you are outdoor as a personal cooling fan. 1 Year Warranty.