Winter Warm Men Women Heating Vest USB Infrared Flexible Outdoor Jacket Features: 6-Zone Heating areaCarbon fiber heating conductor, safe and energy saving,Heating up to 8 hours , , warm, breathable, wear-resistant,-, anti-, acid-proof. The weight of the product is about 450g as feathers, and the inner clamp is pure cotton to ensure that the temperature will not be lost. USB charger. Mobile phone, charging treasure, computer... can supply power.. Washable 3 file temperature control adjustment. What temperature do you want Product Description: Softness index: softer Fabric Name: Polyester Lining Ingredients: Polyester (Polyester) Main fabric composition: polyester fiber (polyester) Thickness: quilted Heating area:6 Voltage: 5V/USB interface Power supply: 5V. 2A Snowman power supply: charging power bank or mobile phone charger not included rating: washable 1. the thermostat is connected to the power supply (battery), the red, blue and green lights flash once,press the button for 2 seconds to turn on, enter the preheat mode, the LED displays red, with breath flash,high-end output, output power, about 65 Celsius, 3 hours of use, automatically jump to mid-range 5 minutes of heating; 2. Mid-range, LED display blue, use 4 hours, about 55 degrees Celsius, output power 70%; 3. Low-end, LED display green, use 8 hours, about 45 degrees Celsius, output power 40%; 4. Click to the gear position, the third gear cycle, long press 2 seconds to shut down. Package Contents: 1X Heating Vest Size US UK EU Length Bust Neck S 4 8 34 62cm/24.41'' 100cm/39.37'' 49cm/19.29'' M 6 10 36 64cm/25.20'' 104cm/40.94'' 49cm/19.29'' L 8 12 38 66cm/25.98'' 108cm/42.52'' 51.5cm/20.28'' XL 10 14 40 68cm/26.77'' 112cm/44.09'' 51.5cm/20.28'' XXL 12 16 42 70cm/27.56'' 116cm/45.67'' 53cm/20.87'' XXXL 14 18 44 72cm/28.35'' 120cm/47.24'' 53cm/20.87'' XXXXL 16 20 46 74cm/29.13'' 124cm/48.82'' 54.5cm/21.46'' XXXXXL 18 22 48 76cm/29.92'' 128cm/50.39'' 54.5cm/21.46'' XXXXXXL 20 24 50 78cm/30.71'' 136cm/53.54'' 56cm/22.05'' Size:S US:4 UK:8 EU:34 Length:62cm/24.41'' Bust:100cm/39.37'' Neck:49cm/19.29'' Size:M US:6 UK:10 EU:36 Length:64cm/25.20'' Bust:104cm/40.94'' Neck:49cm/19.29'' Size:L US:8 UK:12 EU:38 Length:66cm/25.98'' Bust:108cm/42.52'' Neck:51.5cm/20.28'' Size:XL US:10 UK:14 EU:40 Length:68cm/26.77'' Bust:112cm/44.09'' Neck:51.5cm/20.28'' Size:XXL US:12 UK:16 EU:42 Length:70cm/27.56'' Bust:116cm/45.67'' Neck:53cm/20.87'' Size:XXXL US:14 UK:18 EU:44 Length:72cm/28.35'' Bust:120cm/47.24'' Neck:53cm/20.87'' Size:XXXXL US:16 UK:20 EU:46 Length:74cm/29.13'' Bust:124cm/48.82'' Neck:54.5cm/21.46'' Size:XXXXXL US:18 UK:22 EU:48 Length:76cm/29.92'' Bust:128cm/50.39'' Neck:54.5cm/21.46'' Size:XXXXXXL US:20 UK:24 EU:50 Length:78cm/30.71'' Bust:136cm/53.54'' Neck:56cm/22.05''