3 Speeds Adjustable The touch-sensitive button is on the top of the USB desktop fan, which can be used to adjust the wind speed. The powerful desk fan has 3 modes for soft, medium and strong winds. Press and hold for 2 seconds to close power. Use low speed when sleeping and working at high speed when exercising. 360 Cooling & Stable The head of the USB desktop fan can be rotated 360, upgraded larger and flatter base which has 4 non-slip silicone pads make the table fan more stable. Turn the USB fan head to cool down different areas, no more trouble moving the turbo fan, more convenient and useful. USB & Battery Operated We provide a 1.5m USB cable for the bedroom fan to make sure you can easily connect it to a power source. For safe transportation and use, the USB fan is silent powerful not equipped with battery, an extended USB cable is connected for connecting to the PC, power bank or adapter. The battery compartment is reserved for the desktop fan, you can buy the battery yourself if necessary. Quiet Cooling Fan The USB desk fan is not only powerful but also silent, perfect for bedroom use and baby sleeping. Change the mini desk fan to low speed (1st gear), you can hardly hear the sound (