4 Speed Modes & Multi-Directional Rotation: The desk fan is 90° foldable and 120° auto oscillation, allowing you to enjoy the cool wind from your comfortable place. The personal fan can be adjusted between low, medium, high and fast speed modes, which is enough for your different cooling needs. Adjust the appropriate fan speed by repeatedly pressing the power button. USB Desk Fan & Easy to Clean: This fan is equipped with a built-in 4000mAh rechargeable lithium battery, which can last up to 4-16 hours after fully charged. This fan can also be used via the USB port of your PC, power bank, USB charger or other USB devices. Perfect fan for office, home, office, game room. Removable front cover for easy access to the blades for cleaning. Foldable and Wall Mounted Design: This USB fan does not take up much space and features a convenient foldable and wall mounted design for storage and easy transportation. Use it on office counters and tables or attach the fan to the wall to save space.