Innovative Energy Popping Needle Technology spent three years researching energy popping needle technology innovation technology combined with Chinese acupuncture therapy. 12 groups of popping needles, precise focus on cervical vertebrae acupuncture points, relief of cervical spine pain, to achieve the accuracy of the pulse, so you have a healthy cervical vertebrae. Remote control selectable 7 pulse modes, 16 levels of intensity adjustmentAdopting 2500Hz pulse frequency, outputting 6 pulse waveforms. Through the pulse waveforms of different frequencies, it produces analgesic effect on the muscles, which should play a role in assisting the treatment of lumbar spine and reducing the role of soft tissue injury. Constant temperature hot compressNeck Pillow Massager can continuously output 38~433 hot compress effect Warm your cervical vertebrae Relax your muscles With the pulse can better relieve your fatigue speed up the blood flow to improve the quality of sleep. Ergonomic Design Unique concave-convex design, it can provide vertical and horizontal support to your cervical vertebrae when you lie down. It conforms to the curve of human cervical vertebrae and fits the natural curvature of cervical vertebrae dynamically pushing up the curvature and stretching repeatedly to help cervical vertebrae return to its natural curvature. Attention This product is less soft to achieve a stronger support effect, so it is best to use it lying down. This product is not suitable for heart patients and people with steel plates fixed on their bodies Please keep using it for 15-30 minutes a day for 2-3 weeks to improve the stiffness and pain in the neck.