The Evolve System with the T3 Applicator employs RF technology or EMS-TENS technology for the treatment of selected medical conditions.The T3 Applicator in RF mode is intended for the temporary relief of minor muscle aches and pain, temporary relief of muscle spasm, and temporary improvement of local blood circulation.The T3 Applicator in EMS mode is intended for: - Relaxation of muscle spasms - Prevention or retardation of disuse atrophy - Increasing local blood circulation - Muscle re-education - Maintaining or increasing range of motion - Immediate post surgical stimulation of calf muscle to prevent venous thrombosisThe T3 Applicator in TENS mode is intended for: - Symptomatic relief and management of chronic, intractable pain - Post-surgical acute pain - Post-trauma acute painThe RF treatment mode and EMS/TENS mode should not be used in combination or sequentially.