Safety ProtectionIntelligent temperature control, multiple protection functions, After 30 minutes of continuous use, the period cramp massage will automatically shut down, which can ensure your safety. You no longer need to worry about excessive temperature after long use or deep sleep. If you want to use it again, just turn it on again. 3 Modes of Massage and Heating menstrual heating pad comes with 3 vibration massage mode + 3 heated mode. Every function can work independently. You can choose both functions, or only one of functions. Your settings will be displayed on the visible display screen. (Note: it is recommended to start at the lowest heating temperature for the first use,then adjust the heating level suitable for you. ) Use Anytime and AnywhereHeating pad for period pain is cordless/rechargeable which allows you to use it on the go. Due to it's small and lightweight body you are easily able to conceal under clothing which allows for others not see or know that you have it on. What's more, it also comes with a carrying bag which is easy to pack and take anywhere.