The Drive Digital Dual Channel 5 Mode TENS with Two Strength Duration Modes from BEK Medical Inc. will allow you to effectively deliver electrotherapy to those who need it. It utilizes digital wave technology, which provides a wave signal to an injured area on dual isolated channels. It also has intensity control that is adjustable up to an 80 mA, 500 ohm load, pulse frequency that is adjustable from 0.5 to 150 Hz, and pulse width that is adjustable from 30 to 260 microseconds. The wave form can be set at asymmetrical, bi-phase, and square pulse, and the modulation selector comes with 5 different forms of wave delivery. It also comes with a carrying case, two lead wires, a metal belt clip, a 9-volt battery, a package of four pre-gelled electrodes, and an operating manual.