New update: This menstrual pain reliever contains too many new technologies. It is safe, healthy and effective. Built-in noise reduction configuration, you will not even feel any noise during use, making it more comfortable to use, and the inductive touch switch makes it more interesting. It has three heating modes and three vibration massage modes. Built-in 2000 mAh battery: Compared with the previous generation menstrual pain reliever, this device uses a built-in 2000 mAh battery. This allows the heating pad to last longer. It can be fully charged after about 5 hours of charging. Fast heating: Induction touch the heating switch, heating after three seconds. There are 3 temperatures, 113, 131 and 149°F (45, 55 and 65°C). Touch the switch again to adjust the temperature. High-frequency vibration massage: There are three high-frequency vibration massage modes (3000, 4500, 6000 vibration/min), no interval, short interval, and long interval vibration. Touch the switch to adjust the vibration massage mode and choose the one you like best. Washable: The heating pad is removable. After long-term use, the insulation pad can be removed for cleaning. Equipment x1; Charging cable x1; English user manual x1Note: Do not use while charging