Model No : USB Fan for Laptop
No batteries, plugs into USB port
No switches - virtually nothing to break
Just plug it in to use
Quiet motor will not disrupt you when working
Flexible necks lets you position it any way you like
Soft, safe nylon blades circulate steady stream of cool air
Small enough to take anywhere
Minimal battery drain, less than 5 minutes per hour of battery charge
Warranty : One Year Manufacturers Warranty.