1.AC home adapter  and Car adapter included.                                                                      2.In-put:12V;2A

3.20 rolling massaging balls, with heating,
4.Polyurethane sponge, comfortable and soft
5.One simple button control,easy to use.Press once to turn on, twice to turn off the heat, and three times to turn off.
6.Can use in home, office, car etc.