Interferential Current (IFC) Indications for use: Management and symptomatic relief of chronic intractable, post-traumatic and post-surgical pain. Transcutaneous Electrical Nerve Stimulation (TENS) Indications for use: Management and symptomatic relief of chronic intractable, post-traumatic and post-surgical pain. Neuromuscular Electrical Stimulation (NMES) Indications for use: Muscle re-education, Prevention or retardation of disuse atrophy, Increasing local blood circulation, Maintaining or increasing range of motion, Relaxation of muscle spasms Device description: 3 Devices in 1 (IFC, TENS, NMES) 9 Pre-Programmed Options Large Display with Back Light Small, Portable & Easy-to-Use Built-In Treatment Timer Compliance Meter 9 Volt or A/C Adapter