Features: One minutes fast heat, dispelling cold and keeping you warm. Set the temperature you want to respond to a variety of environments. One button to heating, three stall temperature control, intelligent heating. It can be washed by machine and can be washed by hand. Do not wring it by hand. General USB interface power supply, longer service life,anti water splashing and washable. The fashion is warm, comfortable and breathable, and it's a good partner for your winter going out. Specification: Name: Heated vest Condition: Brand new Color: Black, blue, Gender: Men, women Power Supply Interface: USB Power Supply: 5V/2A mobile power (Not Included) Function: Keep warm, water resistant, cold protection Temperature shift: (Manual adjustment) Warm: 56 (Red Light) Comfort: 45 (White Light) Energy Saving: 36 (Blue Light) Size: Please select according to the size table Season: Autumn, winter Package includes: 1 x Heated vest (Mobile power not included) Washing instructions: 1. Take out removable charger. 2. Neutral detergent is available and then hand wash. 3. Do not force knead or beat. 4. After nature air drying can be use. Height: 155-160cm, Weight: 40-50kg, Recommend Size: EU)XXXS Height: 160-165cm, Weight: 50-60kg, Recommend Size: EU)XXS Height: 165-170cm, Weight: 60-70kg, Recommend Size: EU)XS/S Height: 170-175cm, Weight: 65-70kg, Recommend Size: EU)S Height: 175-180cm, Weight: 70-80kg, Recommend Size: EU)M Height: 180-185cm, Weight: 70-80kg,Recommend Size: EU)L Height: 185-195cm, Weight: 80-90kg,Recommend Size: EU)XL Height: 185-195cm, Weight: 90-100kg,Recommend Size: EU)2XL Height: 195-200cm, Weight: 100-110kg,Recommend Size: EU)3XL Tip: If you are close to the critical value, it is recommended to add a one size