1. Hands-free and neckband design: When you are walking you do not want to hold a fan. This unique hands-free and headphone design lets you hang the fan around your neck. The lightweight, compact build and the soft, skin-friendly silicone material that touches the neck keep you comfortable even after long wear. Take it anywhere and use it for indoor or outdoor activities. 2. LED + 360° rotatable double fan, double cool: Variable LED modes for night sports or reading. The neckband fan can flexibly adjust the airflow direction 360°, so you can find the most comfortable wind angle. With two fans, you get stronger airflow. It also makes a practical gift for friends and family. 3. 3 adjustable speed levels: Seven-leaf blades deliver more powerful wind while keeping noise low. Three speeds — low, medium, high — are selected by pressing the power button. The fan simulates natural wind to keep you cool in hot weather. 4. USB rechargeable fan: Built-in 2000mAh lithium battery. Charge via USB with the included cable, compatible with any USB port such as computers, laptops, power banks, or USB wall chargers. Runtime ranges from about 3 to 10 hours depending on the wind speed.