Massage Technology: Most models feature two or more bidirectional 3D Shiatsu massage nodes that mimic hand kneading, combined with varying vibration speeds.
Heat Therapy: Built-in infrared or standard heat settings (usually hovering around a soothing 36°C) help relax stiff muscles and boost blood circulation.
Core Material: Premium pillows use high-density, slow-rebound memory foam to maintain spinal alignment while remaining plush against the skin.
Portability & Power: Look for a wireless, USB-rechargeable unit containing a battery size of around 2000 mAh, which typically lasts for multiple 15-minute auto-timed sessions.
Adjustable Fit: Ensure the pillow features front adjustable locking ropes or clips to snugly secure it to your neck size, preventing your head from