Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. HVP DIGITAL STIM UNIT *Allows for the convenience of use in a variety of settings, from clinic to home * Using twin peak pulsed high-voltage pulsed current for treatment of multiple patient conditions which include increasing blood circulation, relaxing muscles in spasm, muscle re-education, preventing or retarding disuse of muscle atrophy and maintaining or increasing range of motion * All high volt units include batteries, 120V AC line cord adapter and a single patient DURA-STICK High-Volt Accessory Kit * Single channel, with continuous or alternating modes * Protective cover for controls *