The Structure of these fans is unique and fashionable. German brushless DC motor, 100% bare copper to ensure the high winds and long-life. Intelligent control system, reliable performance, which is fully functional and easy operation. Using the international standard 18650 lithium 1200mAh Capacity batteries, that can be recycled and low cost, more universal. A professional portable fan with integration of design, simple appearance and solid structure. 18650 Lithium-ion battery Charger: Input: 100-240V AC Output: 5V 1A DC Charging time: about 4-5 hours Fan Charged Method: Micro USB Cable connect to USB Port of PC/notebook etc. USB Rechargeable FAN Foldable for easy Storage and Carrying Fand Wind Strength can be controlled with mild,medium,and strong level with dial on product side. 100% Brand new and high quality Portable USB Cooling Fan. Ultra-quite design. Mini size for easy carry. Pitch angle can be adjusted upwards or downwards. With key switch. Wind Foldable Hand Fans Rechargeable handheld Mini Fan Desktop Fan Adjustable wind speed. You can adjust wind speed. Humanized hand held fan design. Multi-functional design for office, pram, camping, bed. Foldable and portable, mini size, adjust to different angles. Brushless motor makes the fan strong and durable. The structure of these fans is unique and fashionable; Using the brush and slot less motor,to ensure the high winds and long life; Intelligent control system, reliable performance, which is fully functional and easy operation.