Item Type: Heated VestMaterial: Polyester FiberProduct Color: BlueApplication: Elderly Daily, Overtime Cold Proof, Female Warm, Street Work, Cold Winter Travel, Outdoor Duty1Dual Control Switch: Heated vest connected to the mobile power, press and hold the on off button for 3 seconds to turn on, press again to switch gears, press and hold for 3 seconds to turn off. 23 Gears Adjustable: This heating vest has three adjustable temperature, 30 blue lamp energy saving gear, 40 white lamp comfortable gear, 50 red lamp warm gear. 3Warm and Lightweight: The heated vest coat is made of lightweight insulating material. Using imported Japanese carbon fiber heating wire, infrared heating, no harmful radiation. 11 heating zone, warm your neck, shoulder, back, stomach, abdomen and waist. 4Applicable Scenario: USB heated vest is ideal for outdoor activities, hunting, skiing, fishing, motorcycling, camping, hiking, office, etc. Men, women and elderly people can wear it. 5Washable: The electric heating vest can be hand washed and machine washed, please unplug the mobile power and remove the smart thermostat before washing.1 x Heated Vest