Introducing the COZOK 21 Areas Self-Heated Vest, the perfect solution for staying warm and comfortable during the cold winter months. Made from high-quality polyester material, this unisex vest is designed to provide fast and efficient heat, keeping you warm and cozy in just one minute. With its four switch control and intelligent heating system, you can easily adjust the temperature to suit your needs in any environment.This vest does not come with a power bank, but it is compatible with 5V output voltage batteries. It is also machine washable and can be washed by hand, making it easy to maintain. The general USB interface power supply ensures a longer service life, and the vest is water-resistant and washable, making it a practical and durable choice.Not only is this vest functional, but it is also stylish and breathable, making it the perfect partner for your winter outings. Whether you're going for a walk, skiing, or simply running errands, this heated vest will keep you warm and comfortable. Don't let the cold weather stop you from enjoying your activities – get your COZOK 21 Areas Self-Heated Vest today!Product Specifications:- Brand Name: COZOK- Chemical: None- Origin: Mainland China- CN: Guangdong- Gender: Unisex- Material: Polyester- Power Supply: USB- Temperature Shift: Manual Adjustment