Item Type: Clothes Electric Heating Pad Material: Graphene, Flexible Intelligent Heat Fabric Model: GWARM S2015 Size: Approx. 200 x 150mm / 7.9 x 5.9in Thickness: Approx. 0.3-1mm / 0.01-0.04in Working Voltage: 5V 3.7V 7.4V Heating Temperature: 40-70 Heat Uniformity: Using Surface Heating Ultra Soft And Non Feeling: Perfect Combination With Fabric, No Foreign Feeling Safe And Healthy: Far Infrared Radiation Heating Washable: Normal Heating After Washing Bending Resistance: The Number Of Bending > 5000 Times Long Service Life: Use Time > 10000 Hours High Efficiency Of Electric Heat Conversion: >99% Introduction: Far infrared graphene heating fabric is a flexible apparel heating piece, using graphene efficient conductive composite heating material, and then through a superb process to combine it with a flexible substrate to make a flexible conductive material, electrical heat conversion efficiency of 99% or more, can be widely used in clothing, gloves, shoes, home, outdoor products, small electrical appliances, etc. This product is mainly composed of two parts, the heating part and the control part.