Features: 1.Soft fabric, built in thermal insulation fiber heating material, comfortable wear resistant, durable. 2.You can put it directly in your jackets, vests, and other clothing. 3.Have certain folding resistance water resistance, even heating, and can be washed, but do not immerse in water for a long time (the cloth is glued together, long term immersion is afraid to affect the adhesion of the glue). 4.Lightweight, easy to carry out for winter camping or other activities. 5.3 Gear switch, silicone waterproof, switch with wire grooves, can be directly sewn the switch on the clothes. Condition: 100% Brand New Item Type: Heating Pad Material: Polyester-Mixed Cotton Cloth 1: The heating cloth must be plugged into the computer's USB main interface, the 5V2A power adapter or the 5V2A power bank. In this way can the heating cloth achieve the desired effect. If the output of 5V2A cannot be reached, the heating effect is not obvious or the light indicator of the temperature adjustment switch can not work. 2: When using, please use some thick cotton cloth such as towel to wrap the heating pad before using. In this way, the heat will not be quickly dissipated, and the temperature cannot be tested if placed on the table Power Supply: 5V2A Rated Power: 8.5W Timing Function: Long press the "on" key for 3 seconds in the power-on state to enter the 30-minute timing, and the current indicator light flashes. Third-Gears Temperature: 304050 (depending on the service environment) Switch Category: High, middle and low three - gear adjustment Features:Can be washed, slight knead resistant, insulated without static electricity, resistant to pull and drag. Single Pad Size: Approx. 17.5 x 10cm / 6.9 x 3.9in Package Included: 1 x 3 In 1 Electric Heating Pad