HealthyLIne Jet Series PillowThe HealthyLIne Jet Series Pillow uses natural far infrared from heated gemstones to deliver deep penetrating heat, specifically targeting the neck and shoulders, promoting muscle relaxation, faster recovery, and pain relief. It also features photon lights, offering benefits such as improved energy levels and reduced inflammation. *Heat is concentrated on the neck and shoulders, while the head is kept cool since applying heat directly to the brain is