Description: Name: digital display hanging neck fan Wind speed: 5 gears Material: ABS PP electronic components Color: white/blue/green Battery model: 18650 lithium battery Battery voltage: 3.7V Working current: 5V/0.8-1A max Rated power: 2.5W Working temperature: -10-45 Specifications: 1. [3D Extra Large Air Vents]: The spacing of the uniform air vents is carefully calculated to allow the cool air to diffuse evenly and finely 2. [LED smart display]: power display 3. [5-speed adjustment]: light switch to switch, different wind speeds have different experiences 4. [9-hour long battery life]: Using new energy high-efficiency batteries, the unit capacity is increased by about 35%, the energy density is increased by about 20%, and the long-lasting blowing is reliable 5. [360° Surrounding Wind]: Surrounding wind in the whole area, healthy without blowing straight Package Included: 1*fan 1*USB cable