1. USB Plug 2. Super mute 3. Adjustable Angle 4. Brushless Motor 4 Inch USB mini fan*USB Plug*Super mute *Adjustable Angle *Brushless Motor1)Altra silent,low noise 2)Item Number:JY9713)Current:550+5%mA4)Voltage:DC 5V5)power:2.5+5%W6)Applicable for:Computer,USB electric appliances7)Economize on energy, environmental protection, low noise, apply life span to grow8)Black,silver,red,blue...9)USB Plug ...