... back, waist, shoulder, knee. BNA-01BNA-02BNA-01 infrared health care body warmerCharacterasticsSpecificationsModel BNA-01Model BNA-02Model BNA- ... of radiation is closed to bodys temperature, and infrared spectrum is closed to bodies spectrum, the spectrum ... Reduce the symptom of lumbago, rheumatoid arthritis, neck ache, foot ache, and other aches, numbness, blood cold. Switching ...