Used once. It's a bit too big and doesn't fit, so I'm selling it. Please purchase only if you understand that this is a used item! Neck Fan 6000mAh Large Capacity PD Quick Charging Compatible Heatstroke Prevention Summer/Winter Use 【16300mm² Full-Circumference Peltier Element, Instant Cooling】 Cools down in 3 seconds after turning on. A large, icy-cold cooling plate wraps around the neck, reducing the perceived temperature by -20°C. The double effect of the cooling plate and neck fan sends cool, refreshing air to the face and neck. The powerful cooling sensation that spreads from the neck to the back alleviates the heat and is ideal for preventing heatstroke. 【5m/s Powerful Airflow, 180° Angle Adjustment】 In addition to its excellent cooling function, the 8000RPM high-speed motor delivers an unprecedented airflow of over 500m³/h. The two powerful fans can each be adjusted 180°, achieving three-point cooling of the cheeks, neck, and under the chin. The hybrid cooling system of airflow and Peltier elements cools the carotid artery, cooling the entire body with cooled blood. 【6000mAh Large Capacity Battery, PD Charging Compatible】 Adopts a 6000mAh high-energy density battery, enabling energy-saving and up to 18 hours of continuous use. It can be used while charging, allowing for all-day operation. Compatible with 18W PD charging, it can be fully charged in just two hours. 【100-Step Adjustment, AI Temperature Control System】 The airflow can be adjusted in 100 steps, and the temperature can be adjusted in 2 steps. You can adjust it according to the situation and temperature. In addition, it is equipped with an AI temperature control S mode, which prevents overcooling and numbness of the skin, and the coolness lasts. 【Excellent Heat Exhaust System, Ergonomic Design】 Adopts a CNC aluminum alloy heat exhaust system, making the Peltier element plate less likely to get hot even after long periods of use, providing continuous cooling even at high temperatures. In addition, the main body is designed to follow the curves of the body, distributing the weight and making it less burdensome. 【COOL / HOT for All Seasons】 The plate on the neck adjusts the body temperature comfortably, "cool in summer" and "warm in winter." You can choose the operation according to the temperature, and it can be used all year round, such as fan + plate in summer and plate only in winter. Neck Fan Neck Hanging Fan Back Airflow USB Rechargeable 3-Step Airflow Adjustment Instant Cooling Wide Airflow Range Portable Fan Neck Hanging Fan Small Fan Handheld Fan Mist Fan