ATTENTION THE VOLTAGE IS 220V AND THE PLUG IS EUROPEAN Frequent questions 1. Why does it take almost 2 hours to charge the battery from 60% to 100%? A: It is normal that the last part of the 40% of the battery takes 2 hours to charge to 100%. Like mobile phones, phone battery charging also has this phenomenon. It takes 3 to 3.5 hours to fully charge our heating belt. 2. Why does the heat belt turn off suddenly? R1: Check if the battery is low and charge it in time. R2: If the battery power is sufficient, such as exceeding 50%, this is due to a short period of power consumption (mainly occurs during heating and cooling). vibration at the same time) which will result in self-protection of the battery, which turns it off. This requires you to wait a moment and then turn on the power, and this does not affect the normal use of the product. If this issue keeps occurring many times in a short period of time, then please tell us, we will address it. 3. Can you offer more languages ??for user manual? Yes, it now has 5 languages: English, German, French, Italian and Spanish. We have uploaded the user manual file to the page, you can download it. If you can't find it, let us know and we will send it directly to you.