Customers Speak!

  • We received our ultrasound and have been using it nearly every day since. We purchased it to see if we could relieve pains and help us to get moving. We are pleased with the results. When we don't have pain with every step, it is easier to get out and get the exercise that will help with overall health. Thank you! - Gene R.

  • Easy to Order and arrived very quick. - Patricia M.

  • I’ve done business with company twice; first to buy the TENS unit then to buy a replacement cable. The price is great as is the product. It does what they claim and a bit more. I bought it to work my muscles but when my back became injured, I also used it for pain suppression. I was in no hurry to get the product but when it arrived in two days, it was nice. I recommend this company. - Mark H.

  • Seller was great; I will be using them again!!! - Ed H.

  • This is a great product. It helps with the pain. Price was excellent. Did research on it, can’t beat the price. My physical therapist thought it was great and took down the website to be able to recommend to other patients. - Charlotte L.

  • I would definitely use this merchant again. - Melody W.

  • The basic TENS unit I ordered from Medical Products Online is, I think, exactly like the one a physiotherapist used for the back and neck pain I had after a car accident. It really eliminated all the pain! I am now using my own unit for pain in my feet and legs from all the walking I have to do (no transportation options). Within a week of use at less than half the power output, I am glad to say it's working like a magic charm! - Mary L.

  • Medical Products Online is a great website with plenty of options to choose from. Adequate info is provided for all of their medical devices along with reviews from current users. Delivery was efficient. Prices are remarkable. I have already recommended this website to friends and co-workers. - Sharon G.

  • The customer service agents are very helpful, and knowledgeable about the units. I strongly recommend them to all my friends. - Marvelas E.

  • Shipping was fast and I'm also able to contact them about using the ultrasound I purchased. - Gloria B.

  • Total shopping experience great and outstanding customer service. Product delivered as promised. Will be doing future business and recommend them highly for quality products and exceptional customer service. - Raymond S.

  • They are perfect, exactly what I needed. - Lori S.

  • I purchased the MPO 5000 to replace a rental unit from another company. The MPO 5000 was much better quality. It came in a well protected storage case instead of a soft pouch that the overpriced rental unit came it. The rental unit cost was over 4 times more for each month than the MPO 5000 I purchased. I GRADE THIS UNIT EXCELLENT IN EVERY WAY. - K.C.H.

  • Everything is fine in every aspect of the transaction. I needed information about the use of the product and I received it and I received excellent service after sale. - Paul P.

  • Thank you so much for your promptness!! - Tina B.

  • Excellent service. Fast shipment. Product was what I was hunting for at a great price. - Charles M.

  • Excellent price for what turned out to be quality products. The order arrived in 2 days. They exceeded my expectations and I'll order from them again. - Stephen D.

  • Absolutely perfect transaction! I'm amazed at their service and speed of delivery. And best of all, the prices were among the best. A big shout out to Dolores (I hope I got her name right) she really took great care of me. I will be back! P.S. When I read back through this post, I sound like an employee but can assure all that this is an unbiased representation of a very satisfied customer who has shopped with them twice. - Jay P.

  • Easy ordering, fast shipping and delivery. I will order from this merchant again. - Christopher M.

  • I didn't have any surprises. This merchant did exactly what they promised to do and you can't ask for more than that. I will use them again. - Chris B.

  • It came much sooner than I expected!! I'm a happy camper!! Love the unit!! - Donald W.

  • Delivery, customer service, ease of ordering, products and equipment were everything I hoped for and more. Excellent turnaround time, and equipment was perfect. I would highly recommend this company to everyone. - Cathy L.

  • The item which I ordered has worked for me tremendously. It helps with my back pain and I have recommended it to others. - Celestine V.

  • The item which I ordered has worked for me tremendously. It helps with my back pain and I have recommended it to others. - Celestine V.

  • Just what I needed! - Al T.

  • This is a great value for a quality product. I have used this unit daily since I received it and it has performed flawlessly. Ease of set up was apparent and by reading the instructions, this unit can be ready for use in minutes. - Gary C.

  • Fastest shipping I have ever seen! T.E.N.S. unit is Very High Quality. I have paid for many hours at my doctor’s office, now I have many hours pain free. Thanks MPO! - Tammy T.

  • Very pleased with my shopping experience with Medical Products Online. I will recommend this website to all my friends needing this type of product. - John D.

  • I was very satisfied that the stim pads are above the rest that I have used in the past. Talk about being sticky wow they are the best ever! Time for delivery was great and on time as I ordered them for standard shipping. I would order from Medical Products Online again. - Robert C.

  • They use a TENS unit at physical therapy, so the only relief from the pain in my neck, trapezoids was 4 hours a week at PT when they would turn on the TENS!! My Physical therapist told me I could go online and buy one for home use. I immediately got on line and searched TENS units. There were quite a few to choose from. I settled on a unit and before I knew it it was at my door. It did not take me long before I found my favorite setting, when my pain level is a 9 I turn it up a hair, when my TENS unit brings the pain level down to a 4 I can turn it down. I wear it all day, every day! My TENS works better on my pain than any prescription pain killer. I'm wearing it now. One more thing, the company, they are so ready to help. At a point I thought there was something wrong with my TENS, they were ready to send me a new one, immediately, no questions....then I realized I just needed a new battery. I love my TENS and I love the company! - Michelle B.

  • A+ excellent service. - Armando D.

  • Product was exactly as specified, price was good, and shipping and delivery were ahead of schedule. Very good merchant. - Brian L.

  • I bought this product for my wife and it is great. It performs as advertised. It is light weight and produces a wide range of stimulation to the affected area to provide almost instant relief for tense back muscle spasms. I ordered it on a Sunday and as promised, it was delivered two days later and shipping was free. - Robert J.

  • Very fast service and the product is exactly what I ordered. - Rose M.

  • My physical therapist reviewed the specifications for this TENS unit. The transaction was easy and it was delivered quickly after purchase. The TENS unit works as it should. I'm happy with my purchase. - Terry V.
  • I have never purchased online before; my products arrived with excellent quality in a matter of days. Medical products that were always a challenge to find were delivered to my door! - Lynn S.

  • I'm in the medical field and this was money well spent. I had a strained muscle in my left should. After using the unit 2 times a day, I already can feel the difference. I would recommend this product for everyone. - Terry S.

  • I didn't have to use Customer Service but I feel it would have also been excellent. Site is very easy to use and find what you need, couldn't believe how quickly the merchandise arrived and I used the least expensive mode to save money! The prices were very reasonable for the things that I ordered also. I'll definitely shop again in the future. - Joyce C.

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Muscle Stimulator: MPO 5500 Professional Physical Therapy EMS Unit

List Price:$139.00
Your Price:$49.95
You Save: 64%
Usually ships the same business day
2x2 Standard Pad $1.99 SPECIAL - E1P2020WC2:
Extra 2x2 Premium Pads - EF2020TC2-MPO:
Extra Standard Lead Wires - WW3005:
TENS Electrode Prep Spray $11.99 LS8812-2:
Battery Charger and 2 Batteries - MPOKIT2:
Tens Accessory Kit - MPOKIT1:

Brief Overview

If you're looking for a top-of-the-line muscle stimulator, look no further than the MPO-5500 professional physical therapy muscle stimulator from Medical Products Online. The MPO professional physical therapy muscle stimulator is the most advanced, powerful muscle stimulator unit that we carry. Though it's powerful and efficient, it's also highly portable, making it suitable for use on the field, in the gym, in the locker room or practically anywhere else.

This professional muscle stimulator has been designed for athletes to treat muscle injuries and is also useful for muscle spasms, fatigued muscles and muscle reeducation. Operating with a 9V alkaline battery, this physical therapy muscle stimulator features microelectronics and a dual-channel digital system with three operating modes. It sends electrical impulses to the nerves and motor units that control muscle relaxation and contraction. The MPO-5500 professional physical therapy muscle stimulator is as effective for soothing sore muscles as it is for training spastic or erratic muscles.

Two independent controllable output channels transmit electrical impulses to sore or painful muscles via electrodes, soothing muscles with passive exercise. Besides easing pain, muscle stimulator therapy can also improve muscle tone and circulation and help prevent muscle atrophy.

This unit includes:

  • Timer

  • Patience compliance monitor

  • Cap and door to protect against accidental setting changes

  • Hard plastic case

  • Metal belt clip

  • Two lead wires

  • Four 2"x2" square cloth silver connector multistick nonirritating electrodes

  • 9V alkaline battery

  • Instruction Manual - Click here to download

  • Three-year warranty


The MPO 5500 Professional Physical Therapy Muscle Stimulator is Our Most Advanced & Powerful Muscle Stimulator Unit

The Medical Products Online 5500 Muscle Stimulator System is compact and powerful muscle stimulator designed for athletes and physical trainers to treat muscle injuries and muscle dysfunction where ever you are, even right on the field! Muscle Spasm, Fatigued Muscles and Muscle Re-education, capable of affecting all this and more. How, you ask, microelectronic technology we answer. When you need a portable or home therapeutic professional muscle stimulation device, The Medical Products Online 5500 Muscle Stimulator unit can do the job. When a Professional calls this Muscle Stimulator a necessary tool on the field or in the office, you know it must be great.


The MPO 5500 works and feels great! This unit has a great track record and has become one of our most sought after muscle stimulators by patients and professionals alike. Dependability and power output make the Medical Products Online 5500 a no-brainer when Muscle stimulation is what you need.

The MPO 5500 is a dual channel Digital Muscle Stimulator System with three modes of operation. It is a battery operated Muscle Stimulator Unit that sends electrical impulses to the body to reach the nerves and motor units that control the muscles in relaxation and contraction phases. By controlling these phases with the device, the unit soothes muscles and causes them to contract rhythmically like putting a baby to sleep!

When the baby needs training, repetition is the answer. This device will keep on calling on the muscle fibers to all contract and relax together and reduce the chaos that is often present when muscles are in spasm and erratic.

The device is provided with two controllable output channels, each independent of each other. An electrode pair is connected to each output channel to transmit the electrical impulses to the area of pain.

Electrical Muscle Stimulation (EMS) is an internationally accepted and proven way of treating muscle injuries. It works by sending electronic pulses to the muscle needing treatment. The pulses cause the muscle to exercise passively.

EMS uses a square wave pattern to work directly on the muscle motor neurons. The use of a low frequency in conjunction with the square wave pattern allows direct work on the muscle groupings. EMS has been widely used for the treatment of muscular injuries and for the re-education of muscles, to prevent atrophy in affected muscles, and to improve muscle tone and blood circulation.

The EMS sends comfortable impulses through the skin to stimulate the nerves in the treatment area. When the muscle receives this signal it contracts as if the brain had sent the signal. As the signal strength increases, the muscle flexes as in physical exercise. Then, when the pulse stops, the muscle relaxes and the cycle starts over again. The cycle of stimulation, contraction and relaxation is the power of the EMS.

This muscle stimulator device can be worn all day or on an as needed basis. Device features include adjustable pulse rate, pulse width, and amplitude (intensity). Placements of electrodes are generally in line with muscle fibers and at the origin and insertion (beginning and end) of the muscles.

You should discuss your treatment with your physician or therapist to achieve the greatest results.


• Dual, isolated channels

• Patient Compliance Meter

• 3 modes

• Adjustable pulse amplitude

• Safety Cap & Door Protect

• Timer

• Rubber Side Railing for Maximum Handling

• Sturdy Metal Belt Clip

Three Mode Operation

• Conventional

• Modulation

• Alternate


• 30, or 60 minute treatment periods or continuous.

• Adjustable pulse intensity, rate and width.

Technical Details

Technical Specifications

• Channels: Dual, isolated between channels.

• Timer

• 100ma output

• Wave Form: Modified square wave with zero net (DC) component.

Three Mode Operation
• Conventional
• Modulation
• Alternate

• Modulation Mode: Pulse width is automatically varied in a cyclic pattern over an interval of nominally 4.0 seconds.

• Power Source: 9 volt alkaline or rechargeable battery.

• Size: 24 x 64 x 95mm Weight: 130 grams (including battery)