Black XL vest with heating function, perfect for the cold season. - Size: XL - Color: Black - Features: With heating function - Uses: Cold protection and warming effect Thank you for viewing. * Immediate purchase welcome * New and unused * No need to ask before buying First, we add a silicone cover to the USB port, making it more waterproof. Second, we add zippers to the two pockets so that we can keep your belongings very safe. Third, to keep it more windproof and warm, we set elastic straps at the bottom of the warm coat, and you can adjust it as your waist circumference. Keep Your Body Warm: The HH HHAO SPORT heated vest for rechargeable men has a heating system consisting of large 4 carbon (graphite) fiber heating pads that generate consistent heat to 4 core body parts, including your neck, back, and 2 abdomens. This heated coat helps you maintain body warmth, promote blood circulation, and relieve muscle aches and tension. Two buttons control the front & back areas separately: Two buttons can adjust the temperature of different areas, and you can select the area to heat according to the weather temperature and your body's sensation. Also, the independent control design improves the power efficiency and durability of the device. Note: Power bank is not included in the heated vest. Convenient Heating: This electric heated vest is compatible with a power bank with a 5V 2A / 2.1A USB output port. Press the power button for 3 seconds when connected to a 5V / 2A mobile power bank (power bank not included in the package), and the graphite carbon fiber heating element will generate heat throughout the core body area. A fully charged 10000 mAh power bank can continue to heat for up to 8 hours and a minimum of 4 hours. * Ready to use because it comes with a battery MG0843 Color...Black系 (Black-based)