The only downside is that it is a bit heavy - of course, due to its size and the included resistance - otherwise, it is perfect...

Amazing discovery. I have it with me all the time, I no longer need to beg for water from a kettle, neither in houses nor in taverns. I use it for many reasons, pain, warmth. It lasts for many hours and is very hot at the beginning, so much so that some people can't stand it. I put it in my bed and it stays warm until morning.

update: Unfortunately, it broke in exactly 1 year and 5 days. But I would buy it again.

I have a problem with my neck and it has helped me a lot! It heats up easily and quickly, the heat lasts for a very long time. It is hot, not just warm, perfect for muscle pain.

Very good. I highly recommend it..!
Nov '21: I am coming back because I need to inform you that the charger is no longer working properly. Maybe due to frequent use. However, there is a possibility that I will reorder the same one

It is very user-friendly. It heats up very quickly. It lasts for about an hour and keeps the warmth. I use it at the office for my waist and neck