The angle can be changed, so you can adjust the wind direction. The wind volume can be switched between 4 levels. It is compact so you can easily take it anywhere. You can charge it on the go using a mobile battery. [Charging time] Approx. 3.5 hours (DC5V-2A) Power supply type: USB Type-C [Wind volume] 4 levels: gentle breeze: about 10 hours, weak: about 6.5 hours, medium: about 3 hours, strong: about 2 hours [Cord length] Approx. 60 cm (excluding connector)