Heated vest with 360° all-around insulation, suitable for temperatures down to -20°C. - Color: Black - Heating Function: 360° all-around insulation - Control Areas: 4 independent control areas - Temperature Range: Suitable for temperatures down to -20°C - Battery Capacity: 20000mAh (sold separately) - Usage Time: Approximately 6-12 hours (varies depending on temperature setting) Thank you for viewing.