Aoiutrn USB mini phone fan can be inserted into the charging interface can enjoy arbitrary brought. It is small and portable, you can carry everywhere. This product uses the ultra static micro high speed motor, ultra quiet, the wind is strong, the texture is good. You can use it when you travel, go to work or wait for bus. It is cool a good helper in summer. Features Color:Black,White Voltage:5V Weight:15g Material: EVA Package Including 2*Aoiutrn mini phone fan Note These fans cannot be adjust angle.