Product advantages: 1. A total of 60 programs (modes). 2. TENS: 23 fixed programs + 2 adjustable programs. 3. EMS: 13 fixed programs + 2 adjustable programs. 4. Medium frequency: 8 fixed programs + 2 adjustable programs. 5. RUSS: 8 fixed programs + 2 adjustable programs. 6. Adjustable intensity: 0 - 120 levels. Maximum 120mA. 7. Adjustable working time: 5-90 minutes. 1 minute/step. 8. Dual channel mode, intensity can be controlled separately. Custom adjustable functions 1. Pulse width and frequency are adjustable. 2. Working time is adjustable. 3. Adjustable cycle time. 4. Adjustable intensity (1-120mA). 5. Adjustable rise/contraction/decrease/relaxation (off) time. Customized solution: Ten points: Adjustable frequency: 1 Hz - 800 Hz, 1 Hz/step. Adjustable pulse width: 50 us - 300 us, 1 us/step. EMS: 1. Adjustable frequency: 1 Hz - 800 Hz, 1 Hz/step. 2. Adjustable pulse width: 50 us - 300 us, 1 us/step. 3. Acceleration time: Adjustable, 1 to 9 seconds. 4. Contraction time: Adjustable, 1 to 60 seconds. 5. Deceleration time: Adjustable, 1 to 9 seconds. 6. Relaxation (off) time: Adjustable, 1 to 60 seconds. IF (interference current). 1. PU 1: Adjustable frequency: 4000 Hz - 4150Hz, 1 Hz/step. 2. PU 2: Adjustable frequency: 2500 Hz - 2650Hz, 1 Hz/step. 3. Adjustable cycle time: 5 to 60 seconds. RUSS (Russian Stimulation). 1. PU 1: Adjustable frequency: 2500Hz - 2600Hz, 1Hz/step. 2. PU 2: Adjustable frequency: 2000 Hz - 2100Hz, 1 Hz/step. 2. Adjustable cycle time: 5 to 60 seconds. Function: TENS function 1. Relieve arthritis pain and neuralgia. 2. Rehabilitation and treatment of postoperative pain. 3. Relieve post-traumatic pain and sciatica. 4. Relieve joint pain, chronic intractable pain. 5. Relieve pain in the back, knees, shoulders, ankles, wrists, elbows and other parts. 6. Eliminate inflammation and physical fatigue caused by long-term work. Emergency Medical Service Function Suitable for athletes: warm-up before training and recovery after training (endurance/maximum strength/explosive power strength/conditioning). 1. Delay or prevent muscle atrophy. 2. Relax muscle spasms and relieve muscle soreness. 3. Promote muscle growth and increase local blood circulation. IF (interference current) Function: promote tissue healing, improve blood circulation in injured tissues, relieve pain, relieve muscle spasms, reduce edema, stimulate deep muscles such as pelvic floor muscles, relieve chronic intractable pain and acute pain after surgery and trauma. RUSS (Russian stimulation) Function: strengthen muscles, increase muscle size, improve muscle endurance, accelerate muscle recovery and reduce muscle spasms. Especially for athletes: such as anterior cruciate ligament (ACL) tear, cooperate with physical therapy plan to improve strength. Note: IF is interference current (4000Hz), RUSS is Russian stimulation (2500Hz). TENS and EMS are low frequency, IF and RUSS are medium frequency.