Neck fan with a 6000mAh battery and cooling down to -20°C. - Maximum cooling temperature: -20°C - Battery capacity: 6000mAh - Wind speed setting: 720° uniform upward airflow - Cooling wind temperature: -5°C three-dimensional airflow - Motor: High-speed motor Neck cooler with cooling plate, simultaneous left and right cooling & simultaneous up and down airflow, neck fan, large airflow, portable fan, neck hanging, using Peltier element technology, -20°C instant cooling, cool even in extreme heat, equipped with negative ion function, 6000mAh large capacity, Type-C rechargeable, cordless, lightweight, quiet design, heatstroke prevention, for picnics/sports viewing/outdoors/exercise/commuting/housework (White) Thank you for viewing.