Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. The Trio*Stim is a battery-operated, neuromuscular electrical stimulator featuring three therapeutic modes: TENS, Muscle Stimulation and Microcurrent * This two-channel unit allows you to provide a device for pain control with either TENS or Microcurrent stimulation or you can use the same device for muscle rehabilitation, re-education and spasm reduction * 2 channel unit with 3 therapeutic modes:TENS, Muscle Stimulation and Microcurrent * Has soft-touch control knobs to adjust intensity with confidence * Battery operated 9 volt * 2 year warranty *