This is a mini USB desk fan with stepless controllable speed. It has manual adjustable height arm and on/off switch. Perfect office and home desk cooling fan.

Features:
DC 5V power supply, support any USB ports of PCs and notebook.
Plug and play with ON/OFF switch.
Stepless controllable speed levels, sending comfortable wind according to your requirements.
Manual adjustable height arm and 90° rotating fan angle.
Very quite with low noise, low power consumption.
Suitable for laptop and desktop with 5pcs ABS blades.

Specification:
Color: White / Black (Optional)
Material: ABS 
Power Supply: DC 5V USB
Working Current: less than 500mA
Length of USB Cable: Approx. 100cm / 39.4in
Operating Temperature: -30℃ to 60℃ / -22℉ to 140℉
Operating Humidity: less than 85%
Storage Temperature: -20℃ to 45℃ / -4℉ to 113℉
Storage Humidity: less than 95%
Item Size: Approx. Approx. 180 * 120 * 200mm / 7.1 * 4.7 * 7.9in
Item Weight: Approx. Approx. 308.1g / 10.9oz
Package Size: Approx. Approx. 18 * 12.5 * 19.5cm / 7.1 * 4.9 * 7.7in
Package Weight: Approx. Approx. 429.5g / 15.2oz
  
Package List:
1 * USB Mini Fan
1 * USB Cable