Ultra Quiet - The Blades design has been upgraded with new technology and high quality ABS, so this small desk fan advanced the sound 25% quieter than others. The min noise is about 30 db, max noise is under 50 db, suitable to use in working and studying. 4 Speed Adjustable Wind - Experience customizable cooling and comfort with the 4 speed settings of our rechargeable fan portable. From a gentle breeze to a powerful gust, each airflow is crafted to cater to your needs. Especially the 4th speed variable frequency wind can provide the closest natural wind. Flexible Adjustment - The battery fan has a head that can rotate vertically and horizontally. to adjust to find the most comfortable Angle to use it. Colour:Dark Gray Material:ABS+PC+PP Package Contents: 1 * Fan 1 * Charging cable 1 * Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.