Whether you are dealing with acute, chronic, or post-operative pain in a certain area of your body, the Dual Channel Transcutaneous Electrical Nerve Stimulator from BEK Medical Inc. can deliver the electrotherapy you need to recover. Designed for those undergoing rehabilitation and physical therapy, the stimulator features dual isolated channels, adjustable intensity control from 0 to 80mA, pulse frequency adjustable between 2 and 150Hz, and pulse width adjustable from 40 to 250 microseconds. It can also produce different types of waves and comes packaged with 2 lead wires, a 9-volt battery, 4 pre-gelled electrodes, a carrying case, and an operating manual. Dual isolated channels. Mode Selector: Constant Intensity control is adjustable from 0-80 mA, 500 load. Pulse frequency adjustable from 2-150 Hz. Pulse width is adjustable from 40-250 micro-seconds. Wave form: asymmetrical, bi-phase, square pulse. Plastic belt clip. Comes complete with carrying case, 2 lead wires, 9-volt battery, 1 package of 4 pre-gelled electrodes and operating manual.