Brushless motor makes the fan durable. Idea gift used in Summer. USB Desk Fan, Small Personal Portable Table Fan with USB Rechargeable Battery Operated Cooling Folding Electric Fan for Travel Office Room Household Black, The portable fan adopts high-effective motor, which is available to nearly 3,600 revolutions per minute for exceptional cooling performance. You can enjoy the powerful cooling wind in hot summer.3 ADJUSTABLE SPEED LEVEL, strong wind, wind distance up to 3m.