Weight: 195g
Input: DC 3V
Material: ABS
Dimension: 155mm*105mm*60mm
Packing: 165mm*120mm*73mm

Use alkaline battery, not need wires connection. It can relax your foot any time you want, very convenient. Especially suitable to those who work stand and to those usually work or travel outside. Very easy to use it, just press it using your foot, it then start to work, if want to stop, just loosen your foot.