3 SPEEDS ALTERABLE - The desk fan with 3 adjustable speeds ( Low/medium/high speed level ) meets your various cooling demands. Working time: 1-2 hours, according to the speeds. You just press the button repeatedly to take control the speed. The table fan is equipped with three 4.5-inch blades brings you strong airflow. QUIET OPERATION - Keeping you better sleep/study/work without being affected. When using the small desk fan at the slow speed, you will hardly hear it and even if at the high speed, the white noise will also not disturb you. PORTABLE DESIGN- The non-slip base ensures the usb fan can keep stable on desk and decrease noise when use. You can take it anywhere you want, perfect for home office, outdoor shopping, and travel. ADJUSTABLE ROATATION- The desk fans small quiet is energy-saving and very convenient to use. The 360 adjustable horizontal rotation design gives you cool wind from all angles you want. Quality Assurance & Quick Service- You'll get a table fan and a 3.3ft USB cord. (NOTE: POWER ADAPTER IS NOT INCLUDED). We provide 24-month quality assurance and 30-day money back or replacement. If you have any problem with the charger, please contact us at the first time, we are committed to solve it for you. Quick and friendly service will be provided