Sun Visor Hats with fan made cotton material, you can feel cool outsidewithout holding a fan.Elastic straps make it suitable for women, baby girl. Suitable age: 3-28 years old19-21in oversized brim provides generous shade to your ears, forehead, cheeks and neck, true UV resistant material (UPF50+),At the same time, the fan will keep you cool.It has a built-in 300mAh electric fan with three gears. After fully charged, it can work continuously for 2-3 hours at the highest gear. While charging, the power light will blink, and when fully charged, the power light will stay on.Compared with the traditional sun hat, it has its own electric fan, you can feel cool without holding the fan, and the angle can be adjusted to meet your needs.Can be used for casual everyday wear or outdoors, perfect for camping, beach, hiking, touring, golf, walking, running, jogging, or other sports and activities.Safety: Removable wind rope, with a whistle attached to each hat to prevent wandering. (Including USB charging cable)