Features:Small and Light, Easy to Use.Waterproof, Leakproof and Flame Retardant.No Need to Take off Your Shoes, Just Put Your Feet on the Mat.Using Pu and Silica Gel Material, It Has Fast Heat Generation, No Radiation, and Has a Good Therapeutic Effect.the Warm Pad is Heated for 1-3 Minutes, and It Immediately Feels Hot, and the Temperature Can Be Adjusted and Controlled.Specification:Name: Carbon Crystal Heating PadColor: Wood GrainMaterial: Pvc Thermal Conductive SkinVoltage: 220V 50HzSize: 50X150CmPackage Contents:1 X Heating PadNotice:Please Turn off the Power after Use.If the Cleaning Pad Gets Dirty, Wipe It with a Damp Cloth, and Then Wipe It with a Dry Cloth.Do Not Place It in High Temperature, High Humidity or Dusty Places, Away from Fire and Vibration.Keep Out of Children's Reach.Do Not Touch the Terminals of Dry Batteries with Wet Hands.6. If You Do Not Use It for a Long Time (More Than 1 Month), Please Remove the Battery from Thehine.