Pleasantly surprised. 

Since I have been wearing the Traveller I have had less headaches, brain fog and fatigue. I'm so happy!!

I was surprised that it has been as effective so quickly.

-Shaun S

Protect yourself from Electromagnetic Radiation.

Benefits of the Traveller

 Stops the negative effects that EMR has on our body and health.

 Reduces the cumulative effects and associated symptoms of 

stress, headaches and fatigue caused by Wifi, Bluetooth, phones associated symptoms of stress, headaches and fatigue   

and internet streaming etc.

✅ Your children are at greater risk as they absorb up to 10 times more EMR.

 Enjoy the health benefits and peace of mind from knowing you are protected.

 Helps support the immune system

✅ Get Protection Now!

Product Details

Did You know? 

Artificial Electromagnetic Radiation (EMR) is now a quintillion times higher than the levels of natural EMR we evolved in.
That's 1,000,000,000,000,000,000 times! The vast majority of this rise has occurred within the last 10 years.

The fact that artifical EMR is polarised unlike natural unpolarised EMR makes it impossible for the body to accommodate to it.

How does the Traveller work? 

The Traveller uses CMO (Compensating Magnetic Oscillator) technology that is activated by EMR from your surroundings.  It generates a compensating signal that stops the adverse disruptions to our normal biological processes caused by EMR.  i.e. we are protected from the stress and danger caused by external sources of artificial EMR.

This means we live in harmony with our technology but without interfering with the functionality and benefits we derive from it.

The Traveller protects you because...

The Traveller compensates for the EMR commonly encountered when you are out and about outside your home including the mobile phone  frequencies used to transmit commmunications from 2G to sub-6GHz 5G, WiFi, Bluetooth, DECT, Smart technology and more.

Integrating your Traveller with other Comosystems products

The Traveller covers whoever is wearing it, but EMR is all around us from multiple sources. What about the rest of the family or household?

We recommend the Harmony for your home and office protection. Unlike the Traveller which is very much a personal protection device, the Harmony covers everybody within it's protective zone in the home or office environment.

Even if you have a Harmony and/or Traveller, we still recommend you use an Easycall on your mobile phone because the source of the EMR is so close to your head when you are speaking, and to your body when you are carrying it on you. Likewise, you still need a PCZone for your iPad, tablet or laptop due to the proximity we often use them next to the body.

Increased EMR on the move

Your phone frequently powers up to search for the strongest signals as you move around which exposes your head and body to increased EMR as you are making calls or carrying it around.  All mobile technology in your vicinity will be searching in this way too, which means you are getting zapped from all directions, especially in a city where there are also multiple WiFi signals and hotspots, whether secured or open, that are harming you.

Your mobile phone and car WiFi is powering up much more frequently when your mobile phone is active in your car.  Your car acts like a Faraday cage, so bounces the signals around inside it, exposing you to increased EMR through reflections of the different signals. The Traveller compensates for the EMR generated within your car and protects everybody who is up to 1.5m from it.

Live in Harmony with Technology without interfering with the function, necessity and benefits we derive from it.

Why Buy from Us

We care and we want to make you aware...

We understand and care about the effects that short and long term EMR exposure has on everyone. We offer a scientifically researched and proven technology that has been published in peer-reviewed journals that proves it works, so you can have confidence that you are safe.

Comosystem Products do not block or shield because shielding will either block you from using your technology, or it is not 100% effective. In fact, if your technology senses that it has poor connectivity it will power up to try to make a stronger link and emit more EMR from itself in the process.

This means that if you try to check to see if CMO is working by using an EMF meter you won't see any difference in the readings because CMO stops the effects in your body and not in your technology.

  • Over 25 years of science, research and peer-reviewed tests. 
  • Hundreds of positive testimonials from around the world
  • 30 day money back guarantee
  • 2 years online product validation and guarantee

  • Comosystems Compensating Magnetic Oscillator (CMO) products are the culmination of many years work and research into the biological effects of EMFs by top research scientists from around the world. 

    Over 25 years 

    Comosystems core team was put together in the 1990s by the founder, Mr Maurice Fillion-Robin. His scientific background within the Pharmaceutical industry inspired the exacting methodology and research behind the development of the original CMO devices. 

    They have since been further developed to keep up with the change in frequencies used by Telecoms. 

    Over 10 years Research 

    Having developed CMO technology to mitigate for the adverse effects, independent research was conducted in various universities around the world to validate the new biomagnetic technology. 

    All research was published in either peer-reviewed Journals or presented at relevant Conferences. Papers in theoretical physics are available for specialists on the Internet and direct access to the authors cited. 

    The human studies were double-blinded. This means that participants were given either an active compensating magnetic oscillator, or an identical placebo. 

    The results were analyzed statistically. 

    It is important to note that these study results are completely independent of the industries that produce electromagnetic fields. 

    Research. Study. Independent Reports. 

    Mr Fillion-Robin considered it a basic requirement before going to market to establish that CMO has irrefutable biological evidence. 

    The approach has been to follow the sequence of events employed by Pharmaceutical laboratories when they launch a new drug. Initial studies, then trials, placebos, witnesses, interpretation of results, participation of high-level researchers, publications in Congress and in Scientific Journals.

    How to Use? Simple.

    Take your Traveller out of its fully biodegradeable packaging and attach the included clasp if required.

    The Traveller is designed to be worn close to your body; in your pocket, wallet, or hung on a necklace or lanyard as a pendant. 

    A clasp accessory is provided so you can attach it to a belt buckle, a key ring, or wherever for your convenience, thanks to the hole in the casing for this purpose.

    Traveller Specifications


    The aluminium shell is made of 100% aluminium.
    Chemical composition of the active solutions: microcrystalline saline solution treated electromagnetically.

    Size:  disc diameter is 45 mm, and 9 mm thick.
    Weight: 34g

    Comes with a matching clasp to attach it to a belt loop or to make a pendant

    Shipping Policy

    UK and Ireland Orders and Shipping 

    It can take 24hrs to process orders. 
    Orders will be posted within 24hrs of processing. 
    We aim to post all orders received before 10.00am on the same day. (95% success) 
    Orders placed after 10.00am may not be posted until the next day.
    Postage Rates 
    Postage is based on weight, product value and speed of arrival.
    2nd Class Signed For
    1st Class Signed For 
    Special Delivery
    International Tracked and Signed for Eire

    *All post has a tracking number that we email to you. 


    CMO Comosystems Products FAQ

    How does CMO help?

    A CMO device is activated by the EM radiation that hits it to generate a compensating signal. This compensating signal reinforces the correct biological functions at the cellular level for everybody who is within range. 

    The compensation signal prevents the adverse symptoms we experience as a result of EMR interfering and disrupting our normal biological processes. This means our cells function as normal, allowing us to live in harmony with EM-generating technology, safely. 

    The CMO compensating signal does not alter the functionality of the technology so we can still benefit from using it.

    How do I know it's working?

    The signal strength from a CMO has been measured at 150 femtoTesla and approximately 12Hz using a Super Quantum Interferece Device, which proves it emits the compensating signal. 

    Over 10 years of peer-reviewed research by different scientists around the world has demonstrated that the compensating signal has the required biological effect to prevent the harm caused by EMR.

    How long will it take to notice any difference?

    Some people notice an improvement in their symptoms within a few minutes. Other can take a couple of weeks which is why we have a 30 day money back guarantee. We therefore advise you to give your body time to respond to your CMO if you don't feel immediate benefits.

    Many CMO users report the disappearance of symptoms they had not previously associated with EMR exposure.

    The individual response to CMO technoloy is determined by a number of factors and because different people experience EMR to different degrees.

    Whilst many people are individually unaware of adverse effects, everybody is adversely effected.  Many people experience mild symptoms to some degree that they may or may not consciously associate with the EMR that has caused them. A growing minority of people are severely affected to the point where they are considered disabled by it. These people suffer from electromagnetic hypersensitivity (EHS), which has only recently been recognised as a medical condition, although many people have suffered with it for years. The latest figures from countries who are very much more aware of EHS than the UK, suggest that on average, around 8% of the population suffer from EHS.

    How long it takes for an individual to feel better will therefore depend on their ongoing exposure to EMR, how badly they are affected and how quickly their cells and body can reverse the changes. Even though CMO technology helps stop the adverse effects, it is still advisable to reduce your EMR exposure as much as possible.

    How does CMO technology compare with other devices that claim to protect from EMFs

    Firstly, CMO does not claim to be a shield against EMR. 

    It is not possible to shield the body from all EMR even if you are in some sort of Faraday cage. Some ultralow EMFs can still get through and cause a biological effect. If you were truly shielded, then your technology will not have any connectivity to WiFi etc within the influence of the shield. Partial shielding can cause your device to power up to try to improve connection, which creates higher EMR from your device itself.

    CMO works by emitting a compensation signal that influences the body. This has been verified through a number of research studies and by multiple scientists in different universities and laboratories that prove a real beneficial biological effect. 

    It is up to other technologies to verify their own efficacy and establish how they work in repeated experiments at high level research establishments. 

    The true measure of how well any material or device can protect you is the actual biological effect and changes in biomarkers in your body, not whether it can absorb EMR that hits it. Often absorption is only in a narrow range of frequencies. Frequencies outside this range will still exert their full adverse effects.

    To our knowledge no other technology has been proven, studied, researched and tested to the same extent as CMO.

    What proof is there that Comosystems (CMO) works?

    There has been 10+ years of research performed by independent scientists that have proven that CMO devices mitigate the adverse effects of Harmful Electromagnetic Radiation.

    These have been carried out on a number of stress markers in people as well as an ant study because they are very susceptible to the adverse effects of EMFs but representative of how insects generally are effected. 

    There have been no negative research papers. 

    There have also been many testimonials from people around the world who have benefitted from CMO. 

    Original CMO technology devices were first built 25 years ago and are still fully functional today according to in-house research.

    How is CMO affected by temperature?

    CMO technology is stable from freezing to 65°C. 

    Due to the crystalline content, the solution freezes below 0°C. When CMO freezes there is temporary interruption of the mitigating signal which regains its efficacy when it thaws. 

    Above 65°C the mitigating signal is irretrievably destroyed. 

    Under normal UK and Eire weather conditions CMO should not be at risk, however we advise not keeping your CMO in an area where sunlight may be magnified and amplified through glass or close to areas that might reach 65°C eg fireplace, stove, hob etc.

    How is CMO affected by security X-ray etc?

    CMO technology is designed to function within EMF pollution zones. 

    There are no issues arising from your Traveller, Easycall or PCZone going through security scanners or X-ray detectors. 

    Just put them in the tray as usual and there should be no problems.

    If I change my phone or PC / tablet / laptop can I move my CMO to my new device?


    In order to remove your CMO button, we advise you to take a simple nylon thread, slide it between the CMO and the phone (or PC / laptop / tablet), and shear the adhesive pads off in order to loosen the CMO delicately.

    You can get new adhesive pads from an office supplies or hobby store. 

    To ensure better adhesion, the surface of the device and Easycall / PCZone must be clean and smooth so the adhesive can stick properly. 


    Never attempt to remove a CMO button from a device on which it is glued by pulling or using a knife to peel it off. You risk weakening the seal between the two metal parts enclosing the active solution. 

    The guarantee does not apply if the CMO becomes unsealed after an unsuitable removal or otherwise abused. 

    We also advise you to remove traces of the old adhesive from your CMO, and clean your new phone with a 70° alcohol solution. 

    Once the area is clean and dry, you can put the new adhesive pads on your CMO and finally stick it onto your new device.

    If I buy a Harmony do I still need to buy a PCZone for my laptop / tablet or an EasyCall for my mobile phone?

    Ideally, Yes. 

    A Harmony will deliver full protection against mobile phones and laptops when they are away from the body on charge or on a table etc. 

    However, we tend to use them right next to the body. An Easycall and PCZone will provide additional benefit when a mobile, laptop, iPad or tablet is used close to the body, and in the case of a mobile, often carried in a pocket right next to the body too. 

    The extra protection is required because the power output from when devices are used so close is much higher than the general level of EMR we experience from more distant multiple sources. The Harmony and Traveller can deal perfectly well with these. 

    How long do the devices work (lifespan)?

    Comosystems have done in-house testing on products 15 years old with no deterioration of effect. 

    The 2 yr guarantee is because they have done some official research on devices 2 years after initial use in a trial with no deterioration. The 2 yr period also takes into consideration that CMO products such as the Easycall and PCZone are in contact with different surfaces and get more physical wear and tear every day.

    Science and Government

    Why does the Telecoms Industry and Authorities claim that mobile phones, WiFi and Smart meters etc are safe?

    Safety levels are based on an outdated belief that in order to cause biological affects, EMFs must have a thermal effect (i.e. have a heating effect). 

    This belief was the basis of the SAR scale which is still used to determine safety levels. Industry-sponsored research is used to justify the ongoing expansion of the use of EMFs, whereas independent research provides much evidence of the dangers.

    It has been proven beyond doubt that EMFs do not need to cause a thermal effect to alter our biology however much the Industry denies it.

    How does the network signal strength as shown on a mobile phone correlate to the strength of the emitted EMFs?

    Contrary to what you may think, the weaker the network signal, the harder your mobile phone has to work to maintain the connection. 

    This means the emitted EMR is potentially more harmful when you are making calls in a weak signal area, or in enclosed spaces such as a car etc. 

    This is why other so-called protection devices that claim to cut out or absorb EMFs can actually make the situation worse. If a signal is reduced by them it will power up to compensate.  Even ultra-low EMFs can penetrate a Faraday cage and cause biological effects. 

    Why Questions?

    Why are pregnant women, babies and children most at risk?

    The ability of Electromagnetic Radiation to penetrate the body is determined by its wavelength. The smaller the body, the further the same wavelength penetrates into it proportionally. 

    This is most easily demonstrated by showing the heating effect of a mobile phone on the skulls of people of different ages. Children also have thinner skulls.

    Developing foetuses, babies and children also have much higher numbers of stem cells which research has demonstrated are more susceptible to DNA damage from EMFs than cells that have already differentiated.

    Why is 5G more dangerous than 2, 3 or 4G?

    With the massive increase in the amount of communications, the bandwidth used for 2-4G has all but been used up. 

    New forms of communication must therefore use a different frequency. 5G is a higher frequency which has advantages for data carriage and download speeds in terms of Gb/sec compared to the current Mb/sec. 

    However, the downsides are that the higher frequency cannot be relayed over such long distances, and so requires a network of 5G masts much closer together.  This means there will be many more masts (sources of EM radiation) in closer proximity to people, their homes and offices. The increased information density in the higher frequencies are also more disruptive to our cells.

    5G also enables considerably more technology to function where the faster speeds are crucial. The increase of EMR because of the Internet of Things will be a massive step up in volume of communications, and many times more than the step up from 3G to 4G.

    In cities, 5G masts will be placed approximately every 5-10 houses on street lights. The strength of the signal is highest closer to the masts which means many more people will be forced to live in close proximity to them with little prospect of being able to move away from them. 

    These higher frequencies also cause much greater harm in insects such as bees who we rely on for pollination for food production.

    Why Comosystems not Shungite?

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    Why Comosystems not Orgonite?

    Orgonite is a mixture of different crystals in a resin but the same comments apply as for Shungite. 

    There seems to be no one precise recipe either, yet we know from CMO development and testing that it is a very precise science to get the right effect that properly compensates for all the different EMFs.

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