I have a lot of issues with my back and neck. This renpho massager was sitting on my chiropractors reception desk (a good endorsement) so I gave it a quick try and believed it would be beneficial however was much dearer than I paid from Amazon. Very happy as I can use it whenever during the day as charge lasts long. Only had a short time but so far is the best massager I have had, with the handle easy to use on oneself without any help to reach any area.👍