Magic Needle - Electronic Ear Acupuncture Apparatus Principle of the Magic Needle:- Acupuncture has been in used in China for over two thousand years and has gained wide acceptance in the West. Magic Needle employs the principle that electrical resistance of the acupuncture points along the channels affected is lower than the surrounding skin and the electric current seeks out these points on the skin and sends elecctrical impulses following along these channels. Electordes in close appoistion to the external ear select these points automatically. The skin is not punctured, and there are no side effects. The user does not need to have any knowledge of acupuncture points and the the only action he or she needs to take is the adjustment of the intensity of the electrical impulse according to his or her tolerance. Features: Automatic Detection Automatic Treatment Secure, no-infection No side effects Multi-function Technical Specification: Two size AA batteries (1.5v X 2) The dimensions of the machine: (105 x 62 X 21)mm The net weight of the machine: 88g Ear-fitting electrodes: Specially made rubber for medical use. Three different sizes of ear plugs are provided, please choose the size that best fits your ears. Packaging: each in color box