FORE Cool Summer USB Mini Desktop Fan with Quiet Operation for Personal Cooling Suitable for Dormitory Office and Home Color Black Just like the natural wind, breezing from all the directions to make people comfortable. Quiet operation with. Taking you the peaceful working environment and cozy pastime. Adjustable directions. Both the frame and bracket can be adjusted to match you. It can be hung on the backrest. Made of premium artificial metal to be more durable and steady. 5.Size: 4 inch blade, 5.3 inch frame. Cable: 2.8 feet. Power Supply: USB 5V DC.