Neck cooler. I'm selling it because I don't use it. Please understand that this is a used item. I will do simple packaging with the box. Equipped with a cooling plate, the coolness is different. It's not "just wind," it delivers a "cool" feeling with a built-in cooling plate. The pleasant coolness that is directly transmitted to the neck makes even hot and humid days much more comfortable. Continuous airflow for up to 11 hours. Safe for going out. Equipped with a large-capacity 5200mAh battery. It can operate for up to 11 hours on a full charge. Perfect for long hours of commuting, going to school, office work, and summer leisure activities. Hands-free and stress-free. The neck-hanging type allows both hands to be completely free. You don't have to compromise on coolness, whether you're running, cooking, or holding a child. Control the wind with free angle adjustment. The arm is flexible. Set it to your preferred angle and direct the airflow precisely. Comfortable even while doing your makeup without messing up your bangs. Quiet design × 3-stage wind speed adjustment The wind speed has 3 stages: low, medium, and high. Comfortable even when sleeping with the quiet mode. It's the perfect device for both those who get hot easily and those who are sensitive to the cold.