TAMTEC SPORT 4 PLUS: 4-Channel unit with EMS, TENS, IFC, R-Stim, Micro-Current

7 reviews
Regular price $499.00 Sale price $299.00 Save $200.00
-402 in stock

Our brand new TAMTEC SPORT 4 FDA 510(k) Cleared EMS Unit was designed for individuals and athletes wanting to achieve high maximum level performance with minimal effort. You now have 8 pre-set programs to choose from - thus making your workout fast, easy, and effective! It is ideal for those who desire a user-friendly Electronic Muscle Stimulator that offers a variety of pre-set workouts and recovery programs that are powerful and effective. 

If you have a pacemaker or any metal plates/pins in your body, consult your physician before purchasing.


  • 4 Independant Isolated Channels
  • 8-Preset Programs 
  • Adjustable Intensity
  • Digital Display
  • Push Buttons 
  • Rechargeable Battery - 2200mah 3.7V (does not work with direct current)
  • Treatment Times: 15, 30, 60 minutes
  • Size: 7.09" (l) x 4.72" (w) x 1.22-1.81" (h)

Bundle Includes:

  • 1 Unit
  • 20 Self-Adhesive Pads:
    • 2 packs of Large - 8 total
    • 3 packs of Small - 12 total
  • 4 Lead Wires - with Positive & Negative Indicators
  • 1 Rechargeable Battery
  • USB Charger
  • Instruction Manual
  • Carrying Case
Program 1: Strength/Firming
This program exercises targeted muscle fibers at a high power working level. It includes a warm-up and workout period. The stimulation is continuous at a subtetanic (twitch) frequency during the warm-up period. At the workout phase, the stimulation alternates between weak twitch contractions and stronger tetanic contractions.
This program is perfect for use on your abdominal muscles if you want to strengthen your core. Using this program on your quadriceps and legs will help you get toned/muscular legs.

Program 2: Endurance

The Endurance Program exercises muscle fibers at an average-medium working level, and is meant to work slow twitch muscle fibers. It is designed to increase the above average intensity of muscle strength or effort that must be maintained over a long period of time.

This program is ideal for athletes who are involved in endurance sports that require more slow-twitch muscle fibers such as long distance running, cross country skiing, soccer, etc.

Program 3: Resistance

This program works by using a combination of fast twitch and slow twitch muscle fibers and is intended to increase muscle toning and basic strength. It aims to increase the time the muscle is able to maintain a high-power working point. Your muscles become stronger when you do resistance training. Therefore, it is recommended to use this program repeatedly throughout the week to exhaust the muscle.

Use this program in areas where you wish to develop increased muscle mass.

Program 4: TENS

The TENS active rehabilitation program is for the relief of chronic pain, muscle injury, pinched nerve and other muscle disorders. It produces muscle twitches at a very low frequency. These twitches act like a massage and can be used after your workout.

Program 5: TAMEXX® Wave Active Recovery

Most professional, amateur, and elite athletes all over the world use TAMEXX® Wave Active Recovery Program to recover quickly from injury or surgery. This program helps to mitigate and eliminate muscle disuse atrophy due to neuromuscular disease, muscle-skeletal disorder, chronic pain and other injuries – especially sports-related and auto accidents.
The TAMEXX® Recovery Wave system is fantastic for recovery from sports competition or practice. This program helps to clear lactic acid and increase blood flow at lower frequencies. It is really good for muscles that are tired after vigorous workouts.

Program 6: Russian Stimulation (Muscle Building)

Russian Stimulation was developed in order to help train world-class athletes and body builders. Russian Muscle Stimulation is very similar to EMS but with a higher frequency of 2,500HZ at 50 pulses per second. This allows for deeper, stronger, yet comfortable penetration to the muscle.

It is recommended for the experienced user of electronic muscle stimulation, and is popular among athletes, body builders, and individuals who want to gain muscle mass.

Program 7: TAMEXX® Micro-Current

Micro Current Therapy is the application of very low levels of electrical stimulation to muscles, ligaments, and joints to provide pain relief and promote tissue healing. Micro Current Therapy is the only electrical therapy whose currents can penetrate cells. All other currents such as TENS and Acupuncture pass over the cells. Our proprietary TAMEXX® Micro-current program can also be used in areas that have cellulite and wrinkles such as the hamstrings, buttocks, and arms. 

Program 8: TAMEXX® Interferential Current (IFC)

IFC allows for a higher intensity and deeper penetration to the muscle at a more comfortable level. Through the use of its greater frequency, a higher HZ is used, thus increasing the depth of penetration (less skin resistance). The slightly different proprietary TAMEXX® IFC currents are superimposed to form what is called interference, which blocks the transmission of pain messages to the brain, resulting in much needed relief for users.

Interferential therapy is used primarily for treating muscle injuries.

Follow the simple directions below and you will be on your way to pain relief and muscular strength:


This step is very important. The machine runs on a rechargeable battery only and will not turn on unless the battery is inside the machine.


Unwind the wires and insert them into each output channel / port located at the base of the unit.


Each wire will have a total of 2 pads.


Place the electrodes on the skin over the area you want to treat. If you are unsure about where to place the pads, visit our Pad Placement Charts for EMS & TENS


Turn the unit on by pressing down on the power switch that is located on the right side of the machine.


Choose from 8 different Pre-Set programs based on whether you want to focus on muscle building, toning, pain relief, recovery etc.


Set the automatic timer from 15, 30, 45, or 60 minutes. After you select the appropriate treatment time, press the orange START button.


SLOWLY increase the intensity for each channel and stop at a level that is most comfortable for you. Press the '+' button to increase the intensity, and the '-' button to decrease it. 

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Customer Reviews
4.9 Based on 7 Reviews
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United States United States
Excellect Product For Maintaining Fitness

Your Tone-A-Matic system along with cardio on my stationary bicycle is keeping me in great shape for 76. It takes a lot less time than the gym and gives me exceptionally enhanced contractions for maintaining and building muscle without damaging joints. Thanks, Blake M.

Susan L.
United States United States
Repeat customer

This is my second one. The only reason I got another one is because I used the wrong charging cord and fried the module. I find my knee improves after using P5 and ice. It’s well worth the money for a well constructed product.

William D.
United States United States
Excellent product

got this for my back pain. I couldn't be more satisfied. Takes the pain away so fast.

Chris K.
United States United States
The Big Bertha of "Portable" TENS/STIM units - Excellent

I bought a Sport 4 on Amazon (same price as here, no longer on Amazon) in November of 2018. I have chronic back problems frequently leading to severe nerve and muscle pains. TENS and microcurrent help me get through the day. While I have pocket TENS units for going out, they are only 2 channels and chew through batteries like crazy. This unit is built like a tank. The 4 channels let me surround the pain and keep it under control. I have not explored the conditioning aspects like Russian or EMS stimulation programs yet but may explore further when I am not using it for pain management. This clinical-grade device has heavy-duty wire sets, idiot-proof controls, and a very good battery life. Things I don't like, but not enough to rate it down a star: I wish it was smaller - electrically it could be smaller but then it wouldn't look like a clinical unit. It is about the size of an average hardback book. (Hey Tamtec - I would pay more for a smaller version even though you and I both know the big one doesn't have to be that big!) I wish they had a thin lead option. The high-quality leads (wires) are heavy-duty (think lamp cord) and do not facilitate long term wearing. The weight of the wires is enough to pull the contact pads off if you do not pay attention to gravity. Lightweight leads would eliminate this problem. I have been known to wear a unit for 12+ hours to avoid narcotic pain medicine. While I wouldn't mind wearing the unit in a pouch on my waist or over my shoulder or in a backpack, I would look like somewhat of a science project walking down the street with bright white leads snaking under my clothes. And, I wish it would operate on wall power while charging. Though the manual says it will not do this, I have yet to run a battery out. I do keep extra batteries on standby. Better to have them and not need them... But, these are all personal preferences and not in any way reflective of the quality of the unit. Highly recommended. Would I buy it again? Yes - especially if it was a truly portable version!

Alicia L.
Mexico Mexico
Thanks for this

Easy, practice, simple, efective.