Small but mighty, the OPOLAR 4in. USB Portable Fan offers powerful cooling without the bulk of a standing fan. Equipped with 3 speed settings, it can reach up to maximum speeds of 4.6m/s and 3400 RPM. Convenient for its small size and portability, you are able to use this USB fan remotely anywhere. Perfect for your car, desk, or room, use this powerfully portable fan to combat the heat. • 【Versatile】Small, portable, and powerful, you can cool yourself down at home, in the car, on a camping trip, and so much more! The possibilities are endless. • 【Minimal Noise】Even on the highest fan setting, the powerful blades give off little to no noise. With noise less than 50dB, you can use the fan where to work and even where you sleep. • 【USB Powered】 Powered by a 4.9ft USB cable, our fan is compatible with computers, laptops, power banks, wall chargers and any other USB-enabled power supply. The USB feature allows for energy-saving and environmentally friendly cooling. • 【Adjustable & Easy to Clean】 With a flexible and rotating fan head, you are able to direct the airflow to your needs. The removable front cover makes it easy to clean the fan blades. • 【Warranty】Our fans come with a 1-Year Limited Manufacturer Warranty.