Comfortable Material: Breathable and ultra-light material. Comfortable and soft cotton with decent elasticity. Health Benefits: Graphene heating technology and release of 8-9mm far-infrared rays aid blood circulation and help relax tense neck muscles. The position of the heated pad can be adjusted for targeted therapy. Human-friendly: The output current is 5V, which is a weak current within the acceptable range of the human body and will not cause harm to the body.
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