Describe Rechargeable Battery Powered Fan - Using a 2000mAh rechargeable Li-Ion battery, the small fan is very portable because no cables are required and can be used both indoors and outdoors. A full charge can work for 3-13 hours. 4 ADJUSTABLE SPEED LEVELS - This mini fan has 4 speed levels (low/medium/high/sleep mode) which can be adjusted by pressing the power button repeatedly. Sleep mode can avoid headaches and nasal congestion caused by long-term strong winds and meet people's physiological needs. With 4 blades, the wind is strong and the wind distance can reach 3m. Brushless motor makes the fan durable. Detachable Base - With the detachable base, you can use it in the office or take it with you to tackle hot spots on the road. All day long for your cool needs. At the same time, this fan base can also be used as a mobile phone stand to watch videos. MULTIPLE CHARGING WAYS - With multiple USB ports, you can use the USB charging cable to connect to computers, power banks, laptops and other devices, and enjoy the cool breeze wherever you go. Portable and Lightweight Design - This portable fan is about 165 grams. When you go out, you can put it in your bag and carry it with you, especially suitable for summer travel or outdoor sports. Colour: Black Size: 210*105mm