WindCore PRO model cool vest that achieves instant cooling of -28°C and instant heating of 39°C in 5 locations. - Model Name: WindCore PRO model - Cooling Temperature: Instant cooling -28°C - Heating Temperature: Instant heating 39°C - Battery Capacity: 20,000mAh - Size: Free size - Function: 5-location cooling/heating function - Adjustment: Dial adjustment Thank you for viewing. 2025 latest model Although unused, it has been opened and tested after purchase. Price includes shipping.