Heating pad that provides heat with three temperature levels and relieves muscle pain, back pain, cervical pain, back pain, rheumatism, rheumatoid arthritis, etc..
The pillow is connected to the mains with the knob in the "off" or "0" position, and then the temperature can be adjusted to the desired temperature using the knob. After a short time the pillow emits heat.
It has a safety device that automatically regulates the temperature, switching the power on and off at regular intervals.