Feature: 1. Separate design, upper and lower air outlet cooling2. Hanging neck fan, free hands.3. Built-in battery, Extra long endurance.4. Three-gear wind speed, which can be adjusted as needed.5. Lightweight and -friendly, portable in many . Quiet operation, work and sleep.Specifications:Product name: Neck hanging fanMaterial: ABSColor: whiteModel: F16Power mode: USBRated voltage: 5VInput current: 1ARated power: 2-5WBattery capacity: 4000mAhEndurance: 3-6 hoursNumber of fans: no fan mode: turn to pageWind speed gear: 3rd gear adjustableOperation mode: mechanicalWhether charging is supported: YesPackage Contents:1 x Neck hanging fan1 x Charging base1 x Charging cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.