?DUAL BLADES DESIGN, COMFORTABLE WIND?AYOUYA desk fan has dual blades design. When you choose mild wind, 1 tier of blades works; When you choose strong wind, 2 tiers of blades work. This special design make the wild very comfortable, just like massage on skin. It's a good enjoy when touching the wind from AYOUYA desk fan. ?QUIET, NOISELESS, 21-35db?Because of the dual blades design (5 front blades + 7 back blades), AYOUYA USB fan is very quiet when working, is only 21-35db. You can nearly hear nothing especially the mild wind. It doesn't disturb you at all when working, reading or sleeping. ?USB POWERED, 1.1 METER CABLE?AYOUYA cooling fan is USB powered, the USB cable is 1.1m long, so you can use it on computer, laptop, adapter, power bank conveniently. The cable is white and desk fan is black, the obvious color difference helps you find the cable easily. ?SMALL & LIGHT?AYOUYA desk fan size is 14.7*10cm, very small but powerful wind, it helps you to save space. Is 240g and with Non-slip design, is stable when working. You can use it in office, kitchen, bedroom, living room etc. A small desk fan can be your best male in summer. ?ROTATABLE & DISMOUNTABLE?The blades are maximum 30°ratatable for up and down, you can choose the angle you want. Please NOTE Before Rotating Please Press Down The Blades A Little First Then You Can Rotate Well. It's also dismountable and you can clean it easily.