1.Input:100-240VAC
2.Out put:DC12V/2A

3.2 levels of massage speed can be changed.
4.Press the heating button for 2 seconds, turn on the independent heating function
5.3 modes for selection: Full back;Upper back;Lower back
6.Timer:15mins
7.With handle bar, easy to carry
8.True 3-dimensional massage closely follows the contours of your back
9.Side-to-side and Up-and-down massager
10.Front-to-back to follow the curvature of your spine
11.Fits in any chair, for a great massage anywhere