1.flashing usb fan 2.powered by USB port 3.flexible metal neck 4.soft fan blade,no hurt 5.on/off switch, plug and play 1.mini usb fan for PC, laptop, office use2.powered by PC USB 5.0V or any USB hub3.Built in 2red 1blue 1green lights4.flexible metal neck, you can adjust to any direction you like5.Two pcs of soft blades, no hurt, strong wind and low noise.6.soft neck you can pack it and take to ...