This chair cushion by #QUEES IS FABULOUS!!!! I love that it has heat AND a built in massager. I also love that it has a time temperature controller. Plus it has both the car adapter and home adapter so it is ready to work right out of the package. I often have to go pickup my grandson from school and I often get there at least an hour prior to release to avoid the long line, and to be in the front. Today I took it with me on my trip to the school and kept it on and my back felt so much better. This will definitely be going with me on all my driving excursions, long as well as in town. At $39.99 this is a very good price. Especially since one cushion can be used both in the home against the back of a rocker or recliner, as well as in the car. Also makes a wonderful gift.