Winter Heating- Usb Battery Powered, Heated Thermal Tops, Pants & Jacket. Features: Made of Far-infrared Carbon Fiber Wire Heating Element Layer and Soft Skin-friendly Materials to Ensure a Warm and Comfortable Touch. Intelligent Temperature Control, Heated with Knees, Back and Waist. Powered by Any 5V / 2A USB Portable Charger, the USB Plug is Compatible with Most Portable Chargers on the Market. Which Can Start Heating in 30 Seconds, Long Duration and Long Heating Time. 3-level Adjustable Temperature with Indicator Light to Adjust the Required Temperature. Safety Insulation Design, Built-in Thermal Protection Module, 5V Safety Voltage, Once Overheated, It Will Stop Running Until the Heat Returns to the Standard Temperature. The Washing Machine Does Not Affect the Internal Heating System to Heat Clothes Safely and Durable. Support Hand / Machine Cleaning. Heating Underwear Helps to Improve Blood Circulation, Enhance Metabolism, Which is Very Suitable for People Who Are Afraid of Cold, Raynaud's Disease, Arthritis, Poor Blood Circulation, and Stiff Joints. The Best Solution for Various Outdoor Activities, Such As Skiing, Fishing, Jogging, Hunting, Biking, Hiking Motorcycles, Protecting Climbing Dogs, Running, Snow Removal, Etc. Specifications: Material: 91.1% Polyester + 8.9% Spandex Size: S, M, L, XL, XXL Item Type:Gloves & Mittens Sport Type:Skiing Pattern Type:Solid Gender:Unisex Package Includes: 1 X Heating Thermal Underwear Tops 1 X Heating Thermal Underwear Pants . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.