TanChengg Portable USB Rechargeable Neckband Lazy Neck Hanging Style Dual Cooling Fan

1. Long for 3 seconds (on/off) Lightweight and fashionable design no burden when doing sports. 2. your button to cycle through the wind speed Size:280x190mm 1 x USB Charging Work: blue light flashes Charging: red light Type: Mini Neck Double Fans Low battery: red flashing Material:abs Fully charged: blue light is on Easy to the wind speed - 3 wind speed via A key . Power: 0.3W-1.2W Weight: Approx. 168g Adjustment fan angle to meet your needs. Power input: 5V 1A -wear fan for comfortable and hands experience. 1 xSports Fan Built-in lithium battery : 3.7V 2000mAh