Features: This is a intelligence pants for you. With mobile power storge pocket, easy travel. 1 minutes fast heat, dispel cold and keep you warm. Set the temperature you want to respond to a variety of environments. A button to heating, three stall temperature control, intelligent heating. It can be washed by machine and can be washed by hand. Do not wring it by hand. General USB interface power supply, longer service life,anti water splashing and washable. The fashion is warm, comfortable and breathable, and it's a good partner for your winter going out. Specifications: Input: 5V Color: Black Package Weight: approx. 1000g Material: Polyamide fibre Nylon Size: , L, XL, 2XL, 3XL, 4XL, 5XL(Optional) Applicable ambient temperature: -20 to 15 Physiotherapy place:Knees Temperature: 45 (Red LED), 35(White LED), 25(Blue LED) How To Use: 1.Take out USB plug 2.Plug in removable charger 3.Switch on the removable charger 4.Press the chest temperature controlswitch for two second 5.Red light flashing,means heatingautomatic 6.After red light flashes for 5minutes,then automatic turn to white light,means medium temperature 7.Manual adjustment has three level,redlight means hign-temperature heating continuously.White light means medium heatingcontinuously,blue light means low heating continuously 8.Press the chest temperature controlswitch for two second,lights out and stop heating Washing instructions: 1.Take out removable charger. 2.Neutral detergent is availableand then hand wash. 3.Do not force knead or beat. 4.After nature air drying can beuse. Package Included: 1x Heated Pant(Mobile Power Not Included)