Product Description For acute and physical pain, it is a great cold laser acupuncture therapy pen. You can treat sports injuries with the superficial therapy dome you can use it for health care.The device works with battery and the pen. The benefits of laser acupuncture are very similar to the benefits of acupuncture performed with needles. 1.) Many conditions that typically respond well to traditional acupuncture respond equally well to laser acupuncture, although lasers cannot be used to reach deep acupuncture points. 2.) Like traditional acupuncture, laser acupuncture has many benefits relating to pain relief and can be used to treat conditions such as carpal tunnel syndrome and arthritis. Some people use acupuncture for conditions such as addiction and depression. Laser acupuncture has the additional benefit of requiring no puncturing of the skin, no pain, and no needles, which often inspire fear. 3.) Acupuncture may also be used on animals for pain relief and treatment of other conditions. 4.)Laser acupuncture is particularly useful in these cases because an animal cannot reliably be expected to sit still for needles. Pets that require acupuncture may go through less trauma with the same benefits when lasers are used. Also, as the skin is not broken, aftercare for animals is simple. It is, however, often difficult to locate veterinary clinics that practice laser acupuncture on animals. One of the most important benefits of laser acupuncture over the use of needles for treatment is a reduction in anxiety and fear on the part of the patient. Fear of needles is very common, and the use of needles in a procedure designed to reduce pain often results in additional tension in the patient. Many people react to the sight of needles puncturing skin with fainting or vomiting, making acupuncture an untenable solution for any condition. Lasers provide most of the benefits of traditional acupuncture in a system much less likely to cause panic in patients. Features: Great for relieving pain 650nm laser Output 200mv Works with battery Compact to take with you anywhere Advantage: Affordable Works with normal batteries No needlesPhysical therapy , no side effect, no trauma