Features: The office-fan is clipped onto the computer monitors, which can save desktop space. Suitable for displays with thickness less-than 20mm/0.79 inches. 3 adjustable speeds: natural wind, comfortable wind, and strong wind. The wind speed can be adjusted according to need . You can also manually adjust the airflows direction. Stay comfortable in the hot summer. Extended air outlet design: large area air outlet, quickly cooling. The cutting-edge circulating airflows system generates gentle and uniform-breeze, making you feel comfortable. Bladeless design: The thin and narrow fence effectively prevents accidental contact and is safe to use. The motor runs smoothly and has low noise. Will not disturb work and study. Practical Gift: This fan is the best summer gift for Mom, Dad, Women, Men, She, He, Family, Friend, and Lovers. Specifications: Material: ABS+PP Color: White/Navy-color Size: As shown in the picture Battery capacity: 4000mAh 3.7v Working current: 1.5A Charging voltage: DC5V Gear: Third gear Charging time: 3.5h Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Computer Screen Hanging Fan