Hand-free hands-free necklace fan-Compared with other necklace fans, this mini fan can prevent the fan blades from getting tangled with the hair when using the device, especially during exercise.A small fan with a lanyard is hung around your neck, and the wind blows to your face from bottom to top, no need to hold it.3 adjustable speeds-the portable mini fan provides 3 speed levels: low, medium and high. Ensure the strong and stable wind from the fan, but also quiet enough for your use. This is a good choice for babies to sleep.Multi-angle desktop fan-lightweight design, suitable for handheld, neck and desktop standing; you can hold it in your hand, hang it around your neck with a lanyard (included), when you need to hold the phone and other items You can free your hands.In addition, you can fold it up and put it on the table as a desktop fan to meet the needs of multi-angle applications.Long battery life-1800mAh rechargeable battery requires 3 hours of USB charging time, and can last about 2.5 to 7 hours, depending on different settings.Using the USB charging system, you can charge the fan at any time.Wide range of applications-use it when hanging out, exercising, outdoor work, traveling, sports, leisure, etc.! The perfect gift for people who work in construction sites, filming areas, gardening, warehouses, etc.Color: retro greenThe sturdy necklace and the quiet and comfortable durable strap dont need to be held in the hand all the time.Low noise, relax and work. Multifunctional ventilating fan and perfect gift-personal USB fan is very suitable for home, office, desktop, travel, outdoor, car, camping, beach, yard work, sports. The best gift in the hot summer, for friends, family, women, men, girls, boys, students, children.specification:Input: 5V-1.0A (maximum)Power: 3WBattery: 3.7V 6.6Wh 1800mahSpeed mode: 3 speed modesProduct size: 81.5 * 127 * 44mm