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 massage pillow can provide strong support 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 massage, 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. Neck And Shoulder Heated Massager|Ergonomic Design:Ergonomically contoured to fit the head, neck, and shoulders, this pillow supports the cervical spine's natural curve. Multi-Level Hot Compress & Vibration:Features 3-level hot compress and 3-level vibration to soothe muscles and promote blood flow. Air Cotton Memory Core:The air cotton memory core rebounds slowly, offering support without pressure and blood vessel compression. USB Charging Convenience:Effortlessly charge via USB, ensuring your neck massager is always ready when you need it. Lightweight & Portable:At just 500g, this neck massager is easy to carry, making it ideal for travel and on-the-go relief. Specifications:Gear position: 3 gearsCharging voltage: DC 5V 3ACharging method: USB Plug-in UseProduct size: 415*118*229mmPacking size: 415*118*229mmNet weight: 800g Packing List:1* Neck Massage Pillow1* USB Charging Cable