1. [New experience of cooling and ice feeling in 3 seconds] Neck hanging wear frees hands. The same summer, different cool. 2. [Double-turbine fan blade wind power doubled] 24 turbine blades, 70 holes circumferential design. The whole body is cool and surrounded by air holes at the top and bottom, and the 360 air supply is evenly cooled. 3. [Humanistic design] The cool breeze touches your face and accompanies you to spend the cool summer. 70 holes are looped around to realize circulation heat dissipation. It is healthy to not blow directly. 4. [Wind speed adjustable] 3 gears can be adjusted, and the wind speed can be selected according to different needs. 5. [High toughness] Toughness adjustment high environmental protection material, matched with soft silicone material, light as if nothing. No neck, 360 bending. Comfort and lightness make the cervical vertebra move forward without load. The ergonomic lines are comfortable and do not oppress, and do not burden the cervical vertebra.