Upgraded Version — USB fan with 5 blades and brushless motor, produces a powerful breeze with lower noise level (between 20 and 30 dB). Stay cool while making minimal noise so you can work, read or relax without disturbance. 3-Speed Wind — The fan with 3 airflow speeds can be adjusted to your needs. Comfortable first speed with noise level below 20dB, suitable for sleep; Natural second speed designed for work and study; Cool third strong speed, helps you enjoy outdoor leisure time. Simple button simplifies operation. USB Powered — With 1.2m long USB cable, compatible with 5V output USB devices, such as computers, laptops, power banks, portable chargers and other devices with USB output. Adjustable Angle — The fan frame can rotate 360 degrees, making it very flexible. You can adjust the fan's tilt up and down as needed to enjoy the cool breeze. It is very convenient wherever you are. Mini fan design - Size 12.5x12.5x5cm, portable and compact, perfect for home, outdoor activities and travel.