RFV1 WEARABLE SPORTS FAN, COOL YOUR SUMMER Hand Free Headphone Design Wearable Portable Neckband Mini Fan with USB Rechargeable for Traveling Outdoor Office Tips before use: 1) You’d better tie up your hair before use the mini personal fan. 2) Recharge the fan when it cannot reach the 3rd speed or cannot be turned off. Features: 1, Mute motor super strong wind 2, Wear load and comfortable hands free 3, Fan angle adjusted 4, product lightweight cool and fashionable 5, three wind speed a key switch Tips before use: 1) You’d better tie up your hair before use the mini personal fan. 2) Recharge the fan when it cannot reach the 3rd speed or cannot be turned off. How to use: 1)You’d better charge before use it at the first time. 2)Hanging around your neck and long press button to on/off 3)Press button repeatedly to change the wind speed Low/Medium/High Neckband fan satisfactions: Power Source: 18650-3.7V 1200mAh Battery Type: Air Cooling Fan Installation: Neckband, Portable Material: Plastic Charge Time: 2~3 Hours. Power (W):4.5 Voltage (V):3.7 Item: neckband mini fan Dimension: 260x180mm Fan speed level: Low, Medium, And High