3X Personal Smart Electric Air Face Mask Fan for 650MAh Used for Cycling Running Weeding Outdoor Sports [Multiple uses]-- Fashionable dust protecting mask, breathable and comfortable, perfect for Dust,, Smoke, Pollution, Ash, Pollen. Suitable For Running , Cycling , Hiking , Skiing And Other Outdoor Activities. If you work on gardening, Nail Tech, such as , carpenter, plasterer , the anti-dust respirator is also a good choice._x000D_ [Healthy breathing ]-- The electric fan uses a 4-stage suction filter design that allows the entire mask to be filled with fresh air._x000D_ [Mini Air Purifier]--Built-in 650 mAh lithium polymer battery, which can be by USB, it can last 5-6 hours when fully . It is an air purifier that can be worn on the face, with good purification effect;_x000D_ [Application]It is suitable for KN95 masks or masks with the same thickness as KN95, (Not included Mask), you only need to cut a mouth on the side of the mask to use.Snap design, fast installation/disassembly in 10 seconds, easy to use._x000D_ [Stylish design& deign]Incorporating fashionable design elements, streamlined shape, ultra-thin shell, and cool LED lights, which not only meet your higher functional requirements for masks, but also add a sense of fashion and technology to the wearer. Battery type: polymer lithium battery_x000D_ Battery capacity: 650mAh_x000D_ Battery life time: 5-6 hours_x000D_ Input current: 5V/1A-2A_x000D_ Charging plug type: Micro-USB_x000D_ Fan working life: 10000 hours_x000D_ colour:As shown_x000D_ Material:ABS Package Contents:_x000D_ 3 x electric mask fan_x000D_ 3 x USB cable Only the above package content, other products are not included._x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_