Product information :
Power supply mode: battery
Control mode: mechanical.
Specification: clearance bare pen, regular bare pen, high quality bare pen

Three metal heads:
Ball type: the use of greater strength, good effect;
Round cover type: the contact area of the human body is large, the use is relatively soft;
Set point type: convenient in each part of the body to click the acupoint (note: it is the inside of the yellow with thread) a function switch and strength adjustment press.

Packing list:
Meridian pen *1