Its controller employs high-tech and features low-voltage power supply(3v) and small electric current. It is safe, reliable and endurable.
<br />Battery: 2 x AAA battery (not included)
<br />Enhance circulation system of body.
<br />Improve weak physique.
<br />Color: Blue
<br />Item size: 98*78*23mm
<br />Net weight: 111g
<br />Package weight: 206g
<br />Package Included:
<br />4 x Physical therapy electrode
<br />2 x Connection line
<br />1 x Controller 
<br />1 x User Manual