Product name: Heated VestSpecificationSize:M/L/XL/XXL/3XL/4XL/5XL/6XLMaterial: Polyester fiber (polyester)intelligent three-speedtemperature control adjustable Package List: 1 * Heated Vest(not include powerbank)Lining Material : PolyesterApplicableScene : ShoppingStyle : CasualOrigin : Mainland ChinaApplicable Season : AutumnMaterial : CottonClothing Length : ShortType : RegularItem Type : Outerwear & CoatsPlace Of Origin : China (Mainland)Model Number : 23Detachable Part : NoneCollar: CREW NECKClosure Type : zipperHooded : YesPattern Type : PlaidClosure Type : zipperOuterwear Type : VestGender : MENDecoration : Criss-Crossmodname=ckeditorFeatures:*1.Many Heating Zones and 3 TemperatureAdjustments:carbon fiber heatingelementsgenerate heat across the waist, belly and upper back; One button for 3heating settings.*2.USB Charging: Easy to charge. You need to always connect 5V2A mobile power(this product does not include mobile power). The mobile power needs to beremoved duringwashing.*3.Safe and Healthy: Only 5V far infraredheating, far below the human body safety voltage 36V. Stable heat and bodysafety voltage. Suitable for better warming of the abdomen and waist area.*4.Large-area Heating: The electricheating vest hasMany built-in heaters, which have a blood circulation andwarmth function, which not only warms your stomach, back, waist and abdomen,but also promotes blood circulation.*5.Wide range of applications: This heated vest is ideal for outdoor skiing,winterfishing, mountain biking, cycling, camping, snow hiking, hunting,outdoor attendance, winter street, daily office, etc.*6.Safe and lightweight: the upgraded heating system can ensure you to enjoycomfortable warmth. Large area carbon fiber wire heateris safe and insulated.Comfortable & skin-friendly, touching smoothly and warmth better. It canhelp you spend the whole winter easily without wearing big clothes in coldconditions.Instructions:(1).Take out the USB plug. (2).Access tothe mobilecharging power source(3).Press and hold the chest temperaturecontrol output switch for 3 seconds.(4).Long press the chest temperaturecontrol switch for 3 seconds, start to warm up and then adjust to the mediumtemperature heat when you need to alwaysconnect the mobile power.(5).Manual adjustment to the third gear,warm temperature of 45 degrees Celsius, comfortable gear temperature of 35degrees Celsius, energy-saving gear temperature of 25 degrees Celsius.(6).Press and hold the chest temperaturecontrolswitch for 3 seconds, and turn off the light to stop heating. How toClean the Heating VestsMachine wash & hand wash are available. Do not wring or twists.Unplug the powers before washing and make sure it is dried before heating.