specification: Item Type:Menstrual Heating Pad_x000D_Power Supply Method: It is Recommended to Use Power Bank, Mobile Phone Charger Plug and Socket or USB Power Interface on the Computer to Supply Power Features: 1Graphene heating core quickly heats the abdomen, which fundamentally relieves the pain during the menstrual period. 2Wormwood bag can be placed in the net bag design to provide warmth for women during menstrual period. 3Flexible heating, release far infrared wavelength, apply heat to the position of the abdomen, can be used for a long time. 4Multiple functions, with functions of warming the intestines and stomach, warming the waist, protecting the kidneys, etc. 5Wide range of applications, women in menstrual period, people who lack exercise, people who have long term waist pain, and the elderly. PackageList: 1 xMenstrual Heating Pad 1 x USB Charging Cable 1 x Extension Strap