Features:1. Three wind speed, adjustable at will: one soft wind, two natural wind, three strong winds, to meet your daily needs2. The lanyard is more flexible, durable, comfortable and safe, adjust various orientations at will, adapt to various scenes of application3. Fashionable and simple, leafless fan page design, to avoid rolling to the hair, while reducing the risk of cutting hands in operation4. Lightweight and compact, easy to carry5. Multi-purpose: in the hot summer when it hangs on the neck. Lightweight and small personal cooling fan, easy to carry and store, hanging design, hands- Lightweight and small personal cooling fan, easy to carry and store, hanging design, hands-free neckband fan, ideal for personal cooling, camping, outdoor activities (such as football and unique design), camping, climbing, fishing, golf, holiday, makeup, etcNotice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3cm deviation due to manual measurementSpeed mode: 3-speed speed regulationWorking time: 90-300 minutesPower supply: batteryOutput power: 0.5-1WBattery capacity: 500mAhBattery voltage: 3.7VBattery installation method: non-removableInput voltage: 5VInput current: 0.5-1AOutput voltage: 2.4-4.2VCharging time: about 2-4 hoursCharging current: 5V/0.5ASize: 685475mmNet weight: 110g