This electric heating vest is unisex, even in the cold winter, the mens heated vest is very warm! It can be used for outdoor sports and motorcycle driving, walking, fishing and outdoor work in cold weather. With USB interface, easy to carry and use! When people go out in the cold winter, they usually need to wear a thick coat, which becomes very bloated. However, with our ultra-lightweight thermal vest, you can wear less clothes and add a sense of fashion. The heating function helps to promote blood circulation and relieve muscle pain.\r\n\r\n\r\nWhen you need some extra warmth on a cold, winter day, throw on a heated jackets for men and turn up the heat. Our updated men\'s heating clothing features five heating pads and three different temperature settings to keep you warm and comfortable when the temperature outside drops. With up to 5-10 hours of supplemental heat, you’ll never have to worry about getting cold when you leave the house!\r\n\r\n\r\nHow to use:\r\n\r\n\r\nOpen the pocket and connect the USB interface to a portable charger； Press and hold for 3 seconds to start heating; Press the button to adjust the temperature (3 heating levels available)； Specifications: Colour: Black Temperature Levels: Level 1: 65 ℃ (red light) Level 2: 55℃ (white light) Level 3: 45 ℃ (blue light) Note: There will be 2-4 ℃ of error with different measurement tools and measurement location. Feature: Lightweight USB Cable 5 heating Zones 3 Heating Levels Anti-Crease Machine-Hand Washable Skin-Freindly Material ✔Battery Storage: battery is stored in one inside pocket and the battery pocket is in the left lower corner of heated vest. ✔ Washable: Hand wash or machine wash in a laundry bag, do not twist or wring, hang dry only. Battery can NOT be wash, please pull