USB to start,silent,strong wind,outdoor and indoor use ... pcs40"HQ:27000 pcsUsage:Use USB power cord (supply) to connect PC to start the fan.The fan can be used in ... Feature:Compact design, cute and convenient; Ultra-low power consumption, energy saving and economical;Strong wind, comfortable and practical; ABS material, engaging ... and flexible ; Brushless DC motor, durable and ultra-quiet. USB Fan