Upgraded neck fan with 78 air vents, innovative turbo fan blades and wind hole design, efficient division of air and feel the cooler breeze more gently. The design of the bladeless neck fan can be used safely by children and the elderly. Neck fan appearance is the headphone design, fashionable and versatile.When using without worrying about hair getting rolled in,also free your hands. USB powered rechargeable fan, can be charged by computer, phone charger, mobile power, etc. Built-in 4000 mAh battery provides 3 to 16 hours of operating time (depending on the speed of different gears). Press the power button to adjust the proper fan speed to meet your needs. Made of environmentally friendly ABS and silicone, it is natural to wear, comfortable and skin-friendly.