I work all day at a desk job looking at computers. My neck gets so sore during the day. This has been such a game changer for me. It provides heat and different styles of message with just a click of the remote. It is a very small but powerful massage unit. I like that it is not bulky because then people do not see that I am wearing it for a good portion of my days. The heat never got hot enough that would be hurtful but hot enough to provide therapeutic results. One of the settings for massage is that of a Tens unit which is nice. One setting has a combination of the different modes which is my favorite. With this you can have it on a very low setting so you hardly notice it is one to a very powerful setting to really work the muscles.. I would highly recommend this and I am looking at purchasing another for my husband.