【3 Speeds】The 3-speed USB fan allows you to easily choose the most comfortable speed. Press the button on the back of the small fan to switch from On, Low, Medium, High to Off. Light gentle wind, comfortable like a spring breeze (2m/s - 1500rpm), which is good for indoor air circulation; Moderately cool wind, as if you were in the forest in the early summer morning (2.9m/s - 2070rpm); Strong wind drives away the summer heat (3.7m/s - 2616rpm). 【360° Rotation and Stability】The head of this electric fan can rotate 360° vertically to deliver wind in any direction to cool you down quickly. The 4 rubbers on the bottom of the mini personal fan help reduce vibration and increase friction, keeping it more stable and preventing slipping when working even at high speed. 【USB Powered】The powerful fan is powered by a 1.5m USB cable (not detachable) and can be connected to any device with a USB port, such as PC/laptop, power bank, USB wall charger (not included), car charger and any other USB