Description: Compact and Portable: small in size, convenient to carry, can be used for office home or travel. Double Fans and Lifting Design: Adjustable height, each fan with 5 leaf, strong wind and low noise. Rotatable and Folding: The fans can rotate 360 degree, 135° folding structure, easy to carry and store. Three Speed Adjustable: Low medium high 3 speed level can be chosen by pressing the power button repeatedly. USB Powered: Powered by USB cable, built in 800mAh battery, compatible with PC, power banks, wall charger etc. Specification: Power Supply: USB Features: Double Fan Blades Noise: Below 36db Rated Voltage: 5v Rated Power: 3w Rated Frequency: 3hz Wind Speed Gear: 3 Gears Battery Capacity: 800mah Motor Type: Brushless Motor Number of Fan Blades: 5 Material: Abs Working Time: 3-6 Hours Size Chart: Size: approx. 151x68x77MM/5.94x2.68x3.03inch Package Includes: 1 Piece Desktop Fan 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!