DR HO'S Dual Double Muscle Massager Therapy System Pain Relieve Relax Microcomputer control, automatic adjustment, automatic search point, the operation is simple and convenient Change, has "hit, knead, grasp, take, hemp" such as feeling, very comfortable Small volume, convenient to carry, is available everywhere Small power consumption, use 2 section 7 to 1.5 v alkaline battery(Not included)used once daily, timing for 10 minutes, the battery life can be up to 2 months. Main treatment: through specific low frequency pulse treatment, to the human body has a better analgesic, dredge meridian, to promote blood circulation, eliminate pain and relieve fatigue, the treatment effect is obvious, suitable for all kinds of people