Far Infrared Electric Stone Heating Mattress Full Body Backrest

Features
Deep Penetrating Pain Relief: Shield static electricity and electromagnetic wave radiation, portable and durable, very suitable for health care. Our infrared pads more effectively penetrates and eliminates your uncomfortable, such as sore muscles, spasms, cramps, better than traditional heating pads.
How To Use: First plug in the power supply, the power key will light up, and when you turn the temperature button, it makes a sound, indicating that the temperature is turned on, and 4 is the normal temperature. When you put your hand on the E-wave button, the confirm key will light up, and when you move your hand away from the E-wave key, the light of the confirm key will be off. Usually, the E-wave key can be ignored, you do not need to use this button.