OSITO Dual Channel TENS Unit Muscle Stimulator EMS TENS Unit with 4 Electrode Pads 25 Mode 50 Intensity Muscle Therapy for Neck Back Arms Chronic Pain Relief. TENS: To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities (arm), and lower extremities (leg) due to strain from exercise or normal household work activities.
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