Ultra-Quiet OperationMini USB fan uses high quality cuscinetti silent pads for comfortable wind, keeping 3 adjustable speeds quiet with minimum noise of 22dB (almost equivalent to falling leaves). Enjoy the cool breeze undisturbed. Portable mini fan Lightweight design, 360 free rotation, breeze blowing from any direction, with detachable handle and sturdy single body stand. Suitable for office, travel, office and home environment. Adjustable fan speedLightly press the power button to switch between modes: low / medium / raised. You have several choices in different environments and different temperatures. Bring the most personalized user experience for you. USB Rechargeable Fan The fan is equipped with a micro-USB port for power supply and charging. Built-in 2000mAh high quality battery can last up to 5 hours after fully charged. which is convenient to use without worrying about cables. Energy-saving technologyCompared with air conditioners and other tower fans, our fans are more efficient in energy saving and energy saving. It is also healthier because our fans can circulate the airflow in your room.