Wearable Heating Pad, specifically designed for menstrual pain relief. 
Purpose: Primarily used for easing menstrual cramps, abdominal pain, and backaches. 
Features: Many models are cordless, rechargeable, and offer adjustable heat levels and massage modes (vibration) for customized comfort. 
Technology: Some utilize advanced technologies like PI metal heating, far-infrared hot compress, or graphene for rapid heating and pain relief.