1The heating pad with low voltage and power consumption, only DC5V and 4W are needed. 2Adopted to reduce muscle stress and fatigue, relieve the nerves and restore the body's vitality quickly. 3Can be used to cover the knee, waist, shoulder, and adopting hot compress to warm your body. 4The heating pad has a zipper, you can easily take out the heating core for easy washing. 5The cushion uses soft lint material, which is durable and comfortable to use.