Mini Portable Small Fan Quiet Rechargeable Office Desktop Fan Feature Button function: first turn on the power on the back. Second, adjust the appropriate fan speed by repeatedly touching the front power button (low speed > medium speed > high speed). Finally, turn off the power on the back use. The fan is very small and easy to carry. Perfect for use at home, office, desk . Built-in 800mAh large capacity battery (3 hours full charge), rechargeable via USB cable, computers, laptops, power banks, wall chargers and any other USB-enabled power sources. Product manual Power: 1.3W Product size: 15.5*6.5CM Battery capacity: 800mAh Charging : usb power interface Wind speed adjustment: one gears Portable and Compact: Mini fans are designed to be small and lightweight, making them highly portable. They can easily fit into bags, backpacks, or even pockets, allowing users to carry them wherever they go, whether it's for travel, office use, or outdoor activities. Personal Cooling: Mini fans provide a refreshing breeze for personal cooling. They offer a direct airflow that can help alleviate heat and provide comfort in various settings, such as offices, bedrooms, strollers, or outdoor events. Versatility: Mini fans come in various designs, including handheld, clip-on, or desk fans, offering versatility for different preferences and needs. They can be used in a variety of settings, including bedrooms, offices, strollers, or even on cruise ships. Quiet Operation: Many mini fans are designed to operate quietly, ensuring minimal disruption or noise interference. This makes them suitable for use in quiet environments, such as bedrooms or offices, where noise levels need to be kept low. Power Options: Mini fans often come with multiple power options, including battery-operated or USB-powered models. This versatility allows users to choose the most convenient power source based on their needs and availability.