Feature: 1. Electric heating pad made of soft fabric, built‑in insulating fiber heating material, comfortable, wear resistant and durable. 2. High quality, not just for your life to provide safer guarantee, good material can extend the life of product. 3. Good waterproof, uniform heating, washable, but do not soak in water for a long time (cloth stuck together, long term soak not afraid of affecting glue adhesion.) 4. Excellent performance, the electric heating pad lightweight and portable, convenient to carry out outdoor camping or other activities in winter. 5. Application range, electric heating pad also suitable for people afraid of cold, don't worry about winter anymore, can placed directly into jackets, vests and other clothing for heating using 5V 2A power supply. Specification: Condition: 100% Brand New Name: Electric Heating Pad Type: USB 3 In 1 Material: Heating Cloth Color: As Pictures Shown Quantity: 1PCS Normal Temperature Resistance：3-8（Ω） Maximum Voltage: 5-7.4（V） Thickness: 0.3mm/0.01inch Main Usage: Heating Vest, Heating Clothing Supply Power：5V2A Rated Power：7W Three Gears Temperature：30℃, 40℃, 50℃（Depending on Using Environment） Switch Category: Line High-Middle-Low Three Gears Adjustment Timing Function: Open Switch, Press Switch Key for 3 Seconds at Any Gears Position to Enter 30 Minutes Timing Function Feature: Washable, Lightly Knead, Absolutely No Static Electricity, Tensile Resistance Weight: Approx. 53g. Package List: 1 x Electric Heating Pad Note: Do not plug in computer USB or not achieve 5V2A charging port for use, do not power on high level for a long time without use, do not power wash, do not strong pull switch cable, so as not to cause internal damage of the switch.