Features 5 different TENS output modes - Burst (B), Normal (N), Modulated Rate/Width (MRW), Strength-Duration, and Bi-Pulse.

Pulse Amplitude (Intensity of the stimulation) is adjustable from 0-80mA in ~10mA increments, using the amplitude dials at the top of the device.
Dual channel TENS unit allows the use of either 2 electrodes or 4 electrodes at a time for optimal pain relief.
Treatment Timer adjustable from 5-90 minutes with auto-shutoff, or (C) for Continuous use until manually ending treatment session and/or the battery dies.

Each package comes standard with everything needed to begin treatment right away:
2x 45" Length Lead Wires
1 Pack of 4 Self-Adhesive Electrodes
1x 9V Battery
Instruction Manual
Carrying Case