This neck massager is unlike any other massager I've ever used before. I like that this one uses electric current to stimulate the nerves, which reduces pain and muscle spasms. Other massagers I've used have nodules that roll around and can exert a bit too much pressure for me. This massager, like headphones, is the ideal shape for a variety of neck sizes. It's light and comfortable. This provides the needed relief after a long day of staring at paperwork at my desk. It has a variety of massage modes, including vibration, tapping, kneading, knocking , which I like, among other choices. The controls are located conveniently on the side, very easy to use. It has undoubtedly assisted in the relief of aches, knots, and muscle pain. There are different strength levels to choose from as well. The heat therapy is my favorite thing. The temperature is maintained at a healthy level. It improves blood supply and helps to relax tired muscles more easily. The heat feature can be manually switched on or off. My husband and I both use it, and we couldn't be happier with the results. We both use it once a week.