[3 Speed Control] The USB desk fan with 3 settings of the air flow speed can be adjusted to your demands. Comfortable first speed with noise less than 20dB, suitable for sleep; Nature second speed designed for use in work and study; Cool strong third speed, usb pc fan help you enjoy outdoor leisure.  [3 Speed Control] The USB desk fan with 3 settings of the air flow speed can be adjusted to your demands. Comfortable first speed with noise less than 20dB, suitable for sleep; Nature second speed designed for use in work and study; Cool strong third speed, usb pc fan help you enjoy outdoor leisure.  [3 Speed Control] The USB desk fan with 3 settings of the air flow speed can be adjusted to your demands. Comfortable first speed with noise less than 20dB, suitable for sleep; Nature second speed designed for use in work and study; Cool strong third speed, usb pc fan help you enjoy outdoor leisure.  [Portable and Compact] Minni fan for desk is small (12.3x12.3x5 cm) and exquisite, saves place, easily put into a bag inside. Weight (0.18 kg), usb desk fan perfect for office, desktop, outdoor activities or travel.  [USB Powered] Mini personal fan with USB outlet 1.2m length USB cable, compatible with 5V output USB devices, such as computers, laptops, power bank, portable chargers and other devices with USB output.  [Cools Your Summer] The USB desktop fan brings you a soft breeze to keep you cool, fan usb is great for office, home, dorm, study, library and only stand little space, which is great for baby's sound sleep as well.