Easy to use. I have arthritis in my hands and I’m amazed how this helps with my wrist pain!! My husband also is using it for the coldness and the stiffness of his hands!
Out of the box it works well for the most part except it doesn't want to vibrate. Occasionally it will for a few seconds but then it stops even when the setting is still turned on to continuous vibration. Even when cycling through vibration modes it does not turn on.
This product feels good on hands. Do not notice much heat. There was no transparent sticker on control panel to remove. Wonder if it was a refurbished or returned item. I'll give it a few days before I decide to keep or return