Mini Portable Neck Fan with 3 Speed Levels Handmade Free USB Fan for Office/Home Leafless Electric Fan with Lanyard LBShipping Description: Features:1. Free Design: Just hang the fan around your neck to enjoy the cool feeling (with adjustable harness). No longer damage your neck by rocking back and forth while walking.2. 3 Adjustable speed: soft wind/natural wind/strong winds to meet different wind speed needs.3. USB Rechargeable Fan:; Perfect for mountaineering, running, sports, camping tents, outdoor hiking, office and study. It can be connected to a computer, power banks, or other USB4 port devices. Stylish and simple, no fan side design, avoid curling hair, small and portable, easy to put in your bag and carry with you. Use it anytime, anywhere. A great choice for nature and travel!5. The lightweight suspension of the personal fan is designed for carrying and storage. It is very suitable for outdoor sports, indoor sports, offices, gymsNote:1. Actual color may vary slightly from the picture due to different monitor and lighting effect2. Please allow 1-3cm deviation due to manual measurement Description Speed Mode: 3-speed speed adjustment Working Time: 90-300 minutes Output Power: 0.5-1W Battery Capacity: 500mAh Battery Voltage: 3.7V Input Voltage: 5V Input Current: 0.5-1A Output Voltage: 2.4-4.2V Charging Time: About 2-4 Hours Charging Current: 5V/0.5A Size: 80 × 55 × 78mm Net Weight: 110g Battery Installation Method: Non-removable Package Included: 1x Mini Portable Neck Fan