【Mute Neck Fan】 Made of environmentally friendly ABS and silica gel. It adopts a unique exhaust port shape design, and 70 blades collect wind to suppress air fluctuations, allowing for quick cooling in 3 seconds. Perfect for offices, libraries, and classrooms. Enjoy the coolness and fun of a mini fan without disturbing others. 【USB Rechargeable Fan】 The USB interface is convenient for charging, and 2400mAh is fully charged in about 3 hours, with a battery life of 4-10 hours. 【High Quality】 The middle part is made of food-grade silicone material, and the angle can be adjusted freely. It fits the skin, effectively prevents slipping, is flexible, not easily broken, cool and comfortable, and has a unique design. It allows air to flow evenly on the left and right sides. ☆Thank you for viewing☆ ★Instant purchase & no comments OK◎ ★All products are free shipping! ＊We have great deals in our profile! 【9-37】2.1. Since the operation has not been confirmed, please let us know before the evaluation if there are any initial operational defects. Please check the current product photos for the condition of the product. We will ship with simple packaging. Please note that we may ship the product after taking it out of the box!