Woman Back Intelligent Fever Knitted Keep Warm Long Sleeve O Neck Heating Underwear Blouse Tops Features:Smart heating and warm jacket button one-button switch · three-speed adjustment, mobile power bank power supply safe 5V low voltageCarbon fiber far-infrared heating, new black technology, power on, provide even kisses, heating area on the back of the jacketThree-speed temperature control, adjust as you want, long press for 3 seconds to turn on, short press to shift gears, intelligent heating, care for body temperatureCasual Tops, Long Sleeve, Hedging, FeverTops, Casual tops, Stylish and fashion design, Winter casual Blouse.Occasion: Casual,Daliy, Birthday,Dating, Dance Performance,Party, Wedding, For work, At home Vacationand more. Suit for Autumn,Winter and Spring.PLEASE NOTE: Hand or gentle machine wash in cold water / Do not bleach / Line dry. Our clothes all are designed for Asian figure, which means would be smaller than normal European sizes. Please refer to our own size chart and you can find it in our pictures or from the description.Specification:Material: 95% cotton 5% hempSeason:Autumn/Spring/WinterGender:Women,GirlOccasion:Casual,DaliyPattern Type:SolidCollar:O-NeckStyle:Casual,FashionLength:RegularSleeve Length: Long SleeveHow to wash:Hand wash Cold,Hang or Line DryWhen using USB to plug into the USB port to obtain power, the output is about 5VPackage List:1x Heated thermal underwearNotes:Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks!Due to manual measurement, please allow slight measurement deviation.SizeSize.BustShoulderLengthXXXXL4X-Large104cm/40.94''40cm/15.75''63.5cm/25.00''Size:XXXXLSize.:4X-LargeBust:104cm/40.94''Shoulder:40cm/15.75''Length:63.5cm/25.00''