- Easy Setup: Simply insert the governor into your phone charging treasure, connect the fan USB plug to the governor's USB port, and adjust the speed with the knob. - Versatile Use: Ideal for hot days at your desk, in your dorm room, or while traveling, this USB fan controller allows you to customize your cooling experience. - Smooth Speed Control: Features stepless speed regulation with output voltages ranging from 2.5V to 8V, providing stable adjustments for optimal comfort. - Power Supply Compatibility: Supports a supply range of 4V to 12V with a rated power of 5W (avoid overloading) for reliable performance. - Practical Applications: - Use at your desk to stay cool while working or studying. - Perfect for dorm rooms to enhance comfort during warm nights. - Convenient for traveling, allowing you to create a personalized cooling experience wherever you go.