BallsFHK Small Mask Fan Non-stuffy Heatstroke Prevention USB Mask Fans Rechargeable Small

Use time: 3 hours
Easy to use: You can easily clip it on the mask, let the circulate in the mask, provide fresh , and reduce the discomfort that may cause stuffiness and breathing at the same temperature as the inside or outside. Provide wind power for traditional mask fans
Size: 77X33X22MM
material: plastic
Adopt high-quality material: The host is made of ABS material that is exposed to antibiotics outdoors, and there is no problem in long-term wear.
Color: WHITE
1x mask fan
Simple operation: easily clip onto the mask to ventilate your mask in exchange for fresh .
Small and light appearance: easy and convenient, not easy to stand out, no need to worry about the surrounding environment when using
It is USB rechargeable and can be used anywhere, and it can be recharged via a mobile phone battery. The battery capacity is 300mAh and can be used continuously for 3.5 hours.
Charging time: 1 hour and 40 minutes (the red light stays on when charging, and turns off when fully charged)