Features: NOT INCLUDED BATTERY PACK. Experience advanced warmth with our Men's Heated Vest, featuring rapid USB powered heating technology that delivers consistent heat in cold weather using high efficiency detail. Crafted from lightweight, breathable fabric with a USB compatible interfaces, this heated jackets offering three adjustable temperature settings. Designed for outdoor workers, winter sports enthusiasts, and commuters seeking portable cold weather protections during extended activities like skiing, hiking, or daily travel. Optimize warmth during mountain expeditions, commutes, or outdoor tasks pairs seamlessly with layered clothing while providing targeted heat to shoulders and torsos areas. Suitable for outdoor sports, travel, daily commuting and other scenarios in cold weather, providing a continuous warm experience. Specifications: Technology: Long press to turn on the power and press lightly to change gears, red gear 60℃ (±5℃), white gear 50℃ (±5℃), blue gear 40℃ (±5℃) Component: Polyester Color: As picture shown Size: app. As picture shown(Chinese Size,follow the size chart) Suggested weight:40-65kg Quantity: 1pc Package Includes: 1pc Electric heating vest note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color of item.