Unisex USB Thermo Heating Sleeveless Jacket

Unisex USB Thermo heating sleeveless Jacket Product Description * Shell fabric: 100% polyester Lining fabric: 100% polyester * Power Bank Needed: This heated vest only can be connected with removable power bank, no power adapter connecting! You need to fully charged your removable power bank firstly, then connect with the heated vest. When the power bank is disconnected, the heating vest will also stop working. * Power bank is not included! * Built-in thermal protection module. Once it is overheat, it would stop until the heat return to the standard temperature, so it is 100% safe to use