Benefits of Analog TENS 3000 Unit The Analog TENS 3000 Unit features a timer, gives exact dial performance and is an accurate digital unit; and yet easy to operate. Benefits include maximum, full strength power of 80mA. Featuring a safety amplitude cap that protects the amplitude knobs from accidental bumps or knob movements. Analog TENS 3000 Unit System includes Device Lead wires Four (4) self-adhesive reusable electrodes 9V battery Hard plastic carrying case Instruction manual Product Specifications Power Source: 9-volt battery Pulse Amplitude: 0-80mA each channel Modes: Standard, Modulate, and Burst Timer: 30 and 60 minutes or continuous Waveform: Asymmetrical biphasic square pulse Channels: Dual Pulse Rate: 2-150 Hz Pulse Width: 50-250 microseconds, adjustable Warranty: One year