Cervical Massagers Pillow for Sleeping Constant Temperature Hot Compress Vibration Massagers Head Relaxes the Cervical Spine and Relieves Shoulder and Neck Discomfort Features: 1.Ergonomically designed, it fits the curves of the head, shoulders and neck, stretches safely and protects the normal curvature of the cervical spine. 2.Our cervical spine Massagers pillow can provide strong for the head, effectively relax the cervical spine, relieve shoulder and neck discomfort, and improve sleep quality. 3.Three levels of constant temperature hot compress + three levels of vibration Massagers, promote blood circulation, reduce muscle fatigue, relieve shoulder and neck pain, and improve cervical spine problems. 4.The air cotton memory core rebounds slowly in 5 seconds, supports without pressure, and will not compress the blood vessels of the back, which is safer and healthier. Specifications: Gear position: 3 gears Charging voltage: DC 5V 3A Charging method: USB charging Product size: 415*118*229mm Packing size: 415*118*229mm Net weight: 500g Packing List: 1* Neck Massagers Pillow 1* USB Charging Cable