Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. With Two Strength Duration Modes 1/bx * Digital wave technology provides a highly efficient delivery of the wave signal * Dual isolated channels * Intensity control is adjustable to 80 mA, 500 ohm load * Pulse frequency adjustable from 0.5 -150 Hz * Pulse width is adjustable from 30-260 micro-seconds * Wave form: Asymmetrical, bi-phase, square pulse * Modulation selector offers 5 modes of wave delivery, Normal, Burst and 3 Modulation modes * Metal belt clip * Comes complete with carrying case, 2 lead wires, 9-volt battery * 1 package of 4 pre-gelled electrodes and operating manual * 3 Year Limited Warranty