VEVOR Heated Vest, Men Electric Heating Vest with 16000 mAh Battery Pack, 6 Heating Zones Lightweight Rechargeable Winter-Vest with 3 Levels, for Outdoor Hiking Camping Fishing Skiing, Size MStay WarmKeep Core WarmFull-Body Warmth with One VestThoughtful DetailsCozy Winter ChoiceUnrestricted MovementNumber of Heating Zones: 6 Zones,Heating Zone Locations: 2 x Chest, 2 x Shoulders, 1 x Back, 1 x Neck,Size: M,Temperature Settings: High: 140 °F/60 °C, Medium: 122 °F/50 °C, and Low: 104 °F/40 °C,Item Model Number: RBX-004,Heating Duration: High: 3.8 h, Medium: 6.5 h, and Low: 8.5 h,Input Voltage: 7.4V,Product Dimensions: 29.92 x 22.44 in/770 x 570 mm,Net Weight: 1.96 lbs/0.89 kg