Hot air enters and cold air comes out, and the compression cooling sensation drops by 16℃, making you shiver with coldness. The first to adopt the 7th generation ice-sensing fan + ice-sensing permanent magnet double ball brushless motor air-cooling heat dissipation technology for rapid cooling. 6800 rpm high-speed motor with cold air covering the whole body, transforming into air-conditioned clothes in seconds. Ultra-high-speed compressed air is rapidly cooled, the temperature drops by 23℃ and the whole body is covered with ice. Louder and more comfortable, powerful noise reduction, just for more peace of mind. Uses double ball active noise reduction motor + air duct silencer design to help solve the noise problem of traditional waist-mounted fans. 20 hours of wireless use, leave early and come back late, still charged. Using a large-capacity battery, one unit is worth three units. It has a super large capacity of 10,000 mAh and a battery life of 20 hours in the first gear. It is not an unreasonable standard. Tough clips and strong ribbons prevent them from falling when working outdoors. Versatile, no need to pick pants, no pressure on pants, no burden, can also be worn around the neck, freeing your hands. A must-have to escape the heat outdoors. Strong cold wind to meet the needs of people working in different high temperature environments. Outdoor emergency emergency power bank plus emergency lighting. Comes with USB and TYPE-C interfaces for emergency charging, lighting auxiliary night light, and emergency lighting at night. Colour:Black Material:Plastic Package Contents: 1 * portable fan Only the above package content, other products are not included. 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.