1.Upgrade Materials & Fast HeatingPortable Cramp Heating Pad focuses on relieving women's dysmenorrhea. The latest upgraded comfortable Lycra fabric, ultra-thin, non-toxic, skin-friendly, soft in line with human body structure. Graphene heating technology can quickly provide heat to your body, improve blood circulation and relax muscles.It is suitable for warming the palace, stomach, abdomen and waist protection. 2.Multi-Level Temperature Adjustment & MassageIntelligent temperature control & rechargeable heating pad. 3.Mobile Power Supply cramps relief heating pad provides portable mobile power supply, which is suitable for mobile phones, laptops, USB adapters, etc. Or you can use your own other power bank. 4.Lightweight & Adjustable It's light and can be folded and carried around. It can be seamlessly attached to your body curve when using it, and the heating is more even and convenient. The adjustable waistband is attached by Velcro, which is suitable for people of different body types. Menstrual cramp heating pad supports disassembly-free washing, no need to worry about hygiene issues