Item Type: Heated VestMaterial: PolyesterColor: Dark blueApplications: Daily wearing for the elderly, cold protection for overtime work , female protection, street work, winter travel, outdoor duty 1Fast Infrared Heating: Using imported Japanese carbon fiber heating wire, infrared heating, no harmful radiation. Fast heating in 3 seconds, no need to wait for warmth, the heat is delicate and full, press for 3 seconds to open. 22 Heating Zone: Humanized heating part design, targeting the neck and back parts that are easy to get cold. The scientific heating block makes you even warmer. 33 Gears Temperature Adjustment: 30 blue light energy saving gear, 40 white light comfortable gear, 50 red light warm gear. You can adjust it according to the use needs. 4Lightweight and Warm: The heating vest is made of lightweight thermal insulation material. It can help you keep warm easily, and you don't have to wear heavy winter clothes all winter. 5Applicable Scenarios: The electric heating vest is perfect for outdoor activities, hunting, skiing, fishing, motorcycles, bikes riding, camping, mountaineering, office, etc. 6Washable: After unplugging the mobile power supply and taking down the intelligent thermostat, the heated vest can be washed by hand or machine.