Heating and Massage: The Menstrual Heating Pad features 4 vibration massage modes and 3 heating levels: Simply press and hold the power button for 3 seconds to turn the device on or off, allowing you to choose the mode that provides the most comfortable experience. Fast Heating: Utilizing Pi metal, the Menstrual Heating Pad and massage cushion is equipped with an integrated smart safety chip, allowing it to quickly and safely heat in just 3 to 5 seconds. This effectively and rapidly relieves menstrual pain. High-Quality Materials, Allergy-Free: The Portable Heating Pad shell is constructed from high-quality ABS material, while the heating chip is made from graphene and the abdomen massage belt is crafted from soft velvet fabric. These materials ensure a lightweight, breathable, comfortable, and warm experience. The LED display clearly indicates the heating pad's temperature and massage frequency. Portable and Long Battery Life: With a battery life of 3 hours, this Portable Heating Pad can be used anywhere, anytime whether you're resting, working, cooking, indoors, or outdoors.