Description: 💝Using: This electric portable heating pad device uses USB charging which is more convenient. It has three different adjustable temperatures and three different high-frequency vibration frequencies, you can choose the mode according to your needs. 💝Automatic Design: The portable heating pad is designed to automatically shut down. If you fall asleep during use, our product will automatically turn off within 30 minutes when it detects that you have not made any movement, which can ensure your safety and health. If you want to use it again, just turn it on again. 💝Applications: You can use our products in different scenarios, whether you are resting, reading, driving, or working, it will not have too much influence to you. 💝Note: This heat pad can create heating effectively and quickly. So please choose lowest level at first use. What’s more, don’t let skin direct touch with device. Please put a piece cloth between device and your skin. 💝Please prepare the USB cable by yourself. Please Note: 💝 Power supply is required for use, It only works with charged in. NOT rechargeable. 💝 Universal USB port, can be powered by power bank, laptop, USB adapter, etc. 💝 The power bank is not included Suggestions: 💝 If necessary, hand washing is recommended, do not wring or knead. 💝 Please fully air-dried before use, do not use when wet. 💝 During storage, do not crease the product by pressing heavy objects against it. 💝 Please turn off the power before going to bed. Package Includes: 1pc*heated waist belt