Description about this project Three-speed adjustment long working time: The portable neck fan controls the wind power with one button, and the operation is simple. The wind power is divided into three different wind speeds: low/medium/high, and you can control the wind power and cool. 4-in-1 Design Small Fan with Power Bank: Handheld fan, desktop fan and neck fan as a phone holder. 3000mAh power bank handheld fan to solve this problem for you. The 4-in-1 design brings convenience to girls, boys, athletes, teens, office workers and more. You can charge your phone while enjoying the cool air. Its worth having one. Strong Wind Ultra Quiet USB Power Supply: The personal fan uses a brushless motor and 7 fan blades, which can collect more airflow and generate stronger wind power, and it works more stably than other fans, allowing you to enjoy a cool and quiet journey. Its very convenient to use because you get power sources like USB adapters, power banks, etc. So you can use it as a desk fan, personal fan. Compact and foldable: Folding size: 8*8*3.5cm. You can put it in your pocket, backpack and more. Take it with you when youre out shopping, camping, or hiking. 180 Rotatable Fan Portable Lightweight Design: The small USB fan supports 180 rotation, allowing you to get airflow from different directions, keeping you cool at any angle. The mini handheld fan is only the size of a palm. With a portable and foldable design, it wont take up too much space and weight in a backpack. Even keeping it in your pocket is a breeze.