Bullet Points:1Smart HeatingThe Heated Vest qualified carbon fiber heating element has 3 heating levels, which can generate consistent heat for 11 core body parts including the neck, back, abdomen and waist, back, etc., to help keep the body warm.2Waterproof and LightweightThe Heating Vest is made of a waterproof and windproof fabric, which is comfortable and lightweight. Lightweight, slim fit design with an inner pocket for safe storage of your power bank.3Fast HeatingOur Electric Vest is specially designed for cold winter, just plug in the power bank and the carbon fiber heating plate can heat up in just 1 second.4Wide ApplicationsOur Electric Heated Vest is waterproof and breathable to keep you warm anywhere, such as wanting snowmobiles, motorcycles, mountains, camping, etc. in autumn and winter.5Perfect Gift ChoiceSoft and smooth fabric, lightweight, not heavy, but warm, a must-have item in your wardrobe. The Electric Heating Vest is a great gift for your parents, friends, and classmates.Description:3 heating levels to generate consistent heat for 11 core body areas including the neck, back, abdomen and waist, and back to help keep the body warm.Specification:Name: Heated Vest:Operating temperature range: -5C to 40CWaterproof rating (IP): 3Fabric: PolyesterSize:\L\XL\2XLPlease see the size chart for detailed sizeFront and rear independent temperature control three-speed adjustment:Warm file: 45Comfort gear: 35Energy-saving gear: 25High-grade red light: temperature 55-65 (5)Mid-range white lights: temperature 45-55 (5)Low-grade blue light: temperature 37-45 (5)Note: no power bankProduct Instructions: Sew on the left pocket inside the garment.Precautions:1. It is recommended not to use high temperature for a long time to avoid burns;2. Batteries, connecting plugs, and chargers should avoid contact with water when working.3. Please do not disassemble, modify or disassemble the battery, heating plate, connecting plug, charger and control circuit at will to prevent artificial damage to the heating components;4. If you do not use it for a long time, please do not connect to the power bank;5. It is strictly forbidden to use electricity in wet clothes, please turn off the power when it is wet in the rain, and stop using it;6. The use time depends on the capacity of the power bank.Washing instructions:1. This product is hand washable.2. Avoid ironing, do not dry in the washing machine and do not wring vigorously by hand. Allow the washed clothes to dry in natural ventilation before use.3. The charger attached to this product is prohibited from washing.Instructions:1. Take out the USB plug,2. Connect to the power bank,3. Press the power bank output switch,4. Press and hold the temperature control switch for 3 seconds to turn on, flash and flash to select,5. Press and hold the temperature control switch for 3 seconds, and turn off the lights to stop heating.Packing List:Heat vest*1 piece