Electric Heated Vest, Rapid Heating, 21 Heating Zones, Independent Temperature Control, with Battery Brand New Color: Black Size: M (M, L, XL sizes available, please see my other listings.) Japanese Instruction Manual Included (Sometimes the manual is not included, in which case, please refer to the photos of the manual.) Includes a 40000mAh Battery (※The battery design may change depending on the arrival time. Please understand.) Please refrain from purchasing if you are sensitive to items stored at home. Product Description: 21 Heating Zones Front and Back This electric heated vest efficiently warms a total of 21 zones, keeping you warm even in the cold season. Like wearing a heater, it gently warms your body, which tends to get cold easily. It's a perfect cold-weather item for everyday use, outdoor activities, and work, such as commuting to work or school in winter, cycling/motorcycle riding, fishing, watching sports, skiing, mountain climbing, and outdoor work, helping you get through the harsh winter. Equipped with 21 Japanese Carbon Fiber Heaters The heaters in the electric heated pants use Japanese carbon fiber, which emits far-infrared rays for efficient heating of the body, boosting metabolism and maintaining healthy functions. The power automatically turns off when the heater temperature reaches 65°C, eliminating the risk of low-temperature burns. Safety features prevent danger, allowing for safe and comfortable use for extended periods. Independent Front and Back Temperature Control With this independently temperature-controlled heated vest, you can adjust the temperature separately for the front and back, warming your shoulders, back, abdomen, and waist as desired depending on the situation. The heating elements are built into the "shoulders, back, abdomen, and waist" areas, so you don't have to worry about others noticing when worn as an inner layer. Please refer to the instruction manual for more detailed information. Thank you.