Slow Wave-Leipzig Hindergrund


Slow Wave-Leipzig Logo


"Slow~Wave" is a sophisticated miniature wellness appliance in the form of a pendant. The product is based on years of research in wellness and top-class sport. It couples earth-like magnetic fields and naturally occurring frequencies and transmits them gently to the body. Unlike with high-frequency ranges of, for example, technically generated electromagnetic waves, such as those used in cellular phone systems, we operate in extremely slow wavebands that occur in nature. This is how the name for our product, "Slow~Wave", came about..


Product details

The "Slow~Wave" wellness appliance is a miniature magnetic field and frequency device.
It has battery-operated electronics that emit magnetic fields, frequencies, and light with various spectra.

  • built-in Li-poly battery, 3.7 V, 200 mAh,
  • charging via wireless charging, compatible with Qi (WPC v1.2 Qi Industry Standard),
  • charging current approx. 40mA -> approx. 5h charging time with an empty battery
  • battery life approx. 500 full charge cycles
  • Display (red LED) when the battery is low
  • red flashing light between colour sequences,
  • 1 flash, then 2, etc. up to 5 flashes with increasing discharge, then the device goes into power-down mode
  • 3 intensities: approx. 800, 1600, 2000µT; each frequency change is selected randomly
  • Frequencies: 14 frequencies, 8 Hz - 528 Hz, which change at random. Light runs through different colour spectra once per minute, duration 11 s

"Slow~Wave" is not suitable for people/patients with:

  • cardiac pacemakers
  • epilepsy,
  • alcohol and medication abuse
  • pregnancy,
  • thyroid disorders
  • patients who take a lot of medications must first speak to their doctor since magnetic fields may cause more intensive absorption processes and thus increase the effects of medications
  • patients with schizophrenic or mental disorders that require treatment
  • insulin pumps (implanted)
  • metallic implants
  • untreated high blood pressure
  • severe cardiac rhythm disorders
  • inflammatory processes with fever.

Opinions of athletes

Eric Frenzel

Multiple Olympic champion, world champion, and overall world cup winner in Nordic combined.

...In Nordic combined, we complete highly specific training sessions. You need explosive power, muscle strength, and a high level of body awareness for ski jumping from the hill. In cross-country skiing, I need extreme endurance to compete against the world's best. Therefore, my successes are the result of intense training of body and mind. Sometimes, however, I feel that my muscles could be more resilient, even though they are not sore. I could use some help from doctors or therapists. Unfortunately, we often lack this help, for example, in regular training. That is why I am delighted with "Slow~Wave", which I call "my little therapist". It provides excellent neuromuscular support and is always available to me when I need it....

SchmerzreduktionPhotocredit: NordicFocus

Janine Kohlmann

Multiple World and European champion in the team in modern pentathlon

...The "Slow~Wave" magnet and frequency device does not have the same impact in all five disciplines. But when I run, my leg muscles feel more powerful. I am also noticeably better at fencing. The device has particularly beneficial effects on my relaxation after training. With the high workload I have, this is vital. I hope this positive trend continues ...


Clara Thieme

Vice world champion of junior kayak/canoe

...Astonishingly, such a small device as the "Slow~Wave" can provide tangible support with high training loads. I can achieve more vigorous paddle stroke and improved stroke rate in canoeing. That is very encouraging, and I’ll see where it takes me...


Slow~Wave in equestrian sports

Pferdesport Meinung

Katharina Grupen

In 2017, Katharina Grupen won team gold at the Junior European Championships in eventing

..."Slow~Wave" has become my daily companion. It makes me feel more mindful, focused, and fit. My sleep quality has also become much better. This not only makes me stronger, it also helps me bond with my horse...

Pferdesport Meinung

Slow~Wave for everyday life


University student, 21

..."Slow~Wave" helps me tremendously with my studies. Before I started carrying the little therapist, I had often suffered from a lack of motivation or energy. I’ve noticed that it improves my concentration. I am more productive, and I can say that Slow~Wave has helped me cope better with stress in my everyday life. Due to my studies, I needed to use a PC a lot, and this was causing recurring headaches. Since using Slow~Wave, I've noticed that my headaches have gotten better. I don't want to be without Slow~Wave in my daily routine! ...

Pferdesport Meinung

Melanie Wiesner, 45


...I've been self-employed for 20 years. I have two children (11 and 3 years old), and I work 45-55 hours a week. Most of the time, I felt stressed, annoyed, and trapped on a hamster wheel. Since I've been wearing the "Slow~Wave" device, I've been feeling much more balanced. I can finally be more active again. I feel I have had a good rest in the mornings and feel motivated. Personally, wearing "Slow~Wave" has given me my quality of life back...

Historical digression: the use of magnets in medicine and complementary/alternative medicine

Magnetic field therapy in the history of medicine

Historical testimonies (written sources and oral traditions) repeatedly mention specific stones with magnetic effects. The term "magnetite" was first coined in antiquity. However, magnetic stones have been found in earlier graves (e.g. graves of shamans and healers), proving they were used and appreciated even before antiquity.

Hippocrates (460-370 BC) used the power of magnetic stones to reduce pain and to heal. It is reported that he used compresses with magnetic powder to treat childlessness in women (Tuile, 1998)..

Aureolus Theophrastus Bombastus von Hohenheim (Paracelsus). Wellcome V0004457

Magnetic field therapy to accelerate healing of broken bones

The traditions of advanced Native American civilisations of Toltecs, Incas and Aztecs mention magnetic minerals. Magnetites were also an integral part of medical therapy for the well-known German doctor and scientist Theophrastus Bombast von Hohenheim (known as Paracelsus). He believed that a magical, cosmic, and magnetic force had a healing effect on people. The magnet should be placed at the fracture to facilitate the healing of bone fractures. Modern medicine has also described this process of accelerated healing of fractures under the influence of magnetic fields (Becker, 1994).

Franz Anton Mesmer and the theory of animal magnetism

In the middle of the 18th century, Franz Anton Mesmer developed the theory of animal magnetism. He taught that a magnetic fluid circulating in harmony gives the body its life force. In 1780 he developed the first device for magnet therapy. He succeeded in treating patients with neurological disorders in particular (Hanusch, 2003).

Mesmeric therapy. Oil painting, 1778-1784 Wellcome L0014796

The impact of magnetic fields on our health

Magnetic treatment was used successfully until the beginning of the 20th century. Medical research and pharmacology became increasingly specialised thereafter, and the various fields separated (e.g. orthopaedics, surgery, neurology, etc.). This resulted in a rejection of magnetism. The science behind it was questioned. It was not until the mid-1970s that magnet therapy experienced an upturn. In particular, the research work in Japan, the former Soviet Union, and the US caused a brief, sustained boom. Mat systems, coils, and magnetic plasters were used more and more. Despite scientific successes, their use in clinical practice has not been accepted. The importance of magnetic fields for health, particularly the earth's magnetic field, was recognised in space research in the 1970s. The longer astronauts were in space, the more health problems they experienced. Only integrating a generator (Schumann generator) into the space capsule brought significant improvements in health for long-term astronauts (Ludwig, 1999).

Pole-changing magnetic fields for bone and joint complaints and in neurological diseases

In 1984, Andrew Bassett developed pulsed signal therapy in the US. The therapy introduces pole-changing electromagnetic fields with a specific pulse shape into the body. This method was particularly successful in treating bone and joint problems and neurological diseases. In the years that followed, many pulsed magnetic field devices were developed. Some of them are still on the market.

Magnetic field therapy is also used in veterinary medicine

Especially in veterinary medicine, where a placebo effect is hardly expected, many healing processes have been observed. There have been many successes in the treatment of noble horses in particular. Magnets in various designs have been used intensively at the world-famous Spanish Riding School in Hofburg, Vienna, for over 40 years.

About us

We'd like to introduce ourselves briefly and provide you with some facts. We have been investigating the effects of magnetic fields for over two decades. Several years ago, Otto Strempel developed the first magnetic field devices in the form of portable pendants with a noble design (made of silver, for example). Prof. Dieter Lazik, Dr. rer. nat. examined the effects of pole-changing magnetic fields on athletic performance while supervising a team of athletes. We got to know each other by exchanging experiences using magnetic field systems, and we started our first small-scale collaborative projects. In 2019 we joined our experiences. The result was the wooden version of the portable device we present here.

Otto Strempel

  • physiotherapist
  • "Hanne Marquardt foot reflexology" therapist
  • inventor and developer of various magnetic field devices

Prof. Dr. rer. nat. Dieter Lazik

  • PhD in sports biology
  • lecturer on health promotion
  • competitive sports supervisor
  • licensed non-medical practitioner
  • inventor and developer of new devices and processes in the fields of sport, medicine, and the environment


Slow~Wave UG (haftungsbeschränkt)

Rathenaustraße 4
04179 Leipzig


Privacy Policy

General information

The following information provides a simple overview of what happens to your data when you visit this website. Personal data is data that can identify you personally. Detailed information on the subject of data protection can be found in our privacy policy listed below..

Data collection on this website

Who is responsible for the data collection on this website?

The website operator carries out the data processing on this website. You can find their contact details in the legal notice of this website.

How we collect your data?

IOn the one hand, your data is collected when you provide it to us. This can be, for example, data you enter in a contact form.

Our IT systems record other data automatically or with your consent when you visit our website. This is primarily technical data (such as the type of browser or the operating system or when the page was accessed). This data is collected automatically as soon as you open our website.

How we use your data

Some of the data is collected to ensure that the website is error-free. Other data can be used to analyse user behaviour

Your rights with regards to your data

You have the right to receive information about the origin, recipient, and purpose of your stored personal data free of charge at any time. You also have the right to request the correction or deletion of your data. If you have given your consent to data processing, you can revoke this consent for future processing at any time. You also have the right to request that the processing of your data be restricted under certain circumstances. You also have the right to complain to the competent supervisory authority.

If you require further information on how we process your data, you may contact us at any time at the address stated in the legal notice.

Analysis tools and third-party tools

When you visit this website, your surfing behaviour can be statistically evaluated. This is done primarily with so-called analysis programs.

You can find detailed information on these analysis programs in the following privacy policy.

2. Hosting and Content Delivery Networks (CDN)

External hosting

This website is hosted by an external service provider (host). Personal data recorded on this website is stored on the host's servers. This can primarily involve IP addresses, contact requests, meta and communication data, contract data, contact details, names, website accesses, and other data generated via a website.

The host is used to fulfil the contract with our potential and existing customers (Art. 6 Para. 1 (b) GDPR) and in the interest of secure, fast and efficient provision of our online services by a professional provider (Art. 6 Para. 1 (f) GDPR).

Our host will only process your data to the extent that this is necessary to meet its performance obligations and follow our instructions regarding your data.

We use the following host:

Elgendorfer Str. 57
56410 Montabaur

3. General information and mandatory information Data protection

The operators of this website take the protection of your data very seriously. We treat your data as confidential and process it in accordance with statutory data protection regulations and this privacy policy.

When you use our website, we collect various personal data. Personal data is data that can identify you personally. This privacy policy explains which data we collect and how we use it. It also explains how this is done and for what purpose.

Please note that data transmission over the internet (when sending/receiving emails, for example) may be associated with security vulnerabilities. It is not possible to protect your data in a way that will fully guarantee that third parties cannot gain access to it.

Note on the responsible body

The body responsible for data processing on this website is:

Slow~Wave UG (haftungsbeschränkt)
Rathenaustraße 4
04179 Leipzig

Phone: +49 (0) 341 256 993 13

Verantwortliche Stelle ist die natürliche oder juristische Person, die allein oder gemeinsam mit anderen über die Zwecke und Mittel der Verarbeitung von personenbezogenen Daten (z. B. Namen, E-Mail-Adressen o. Ä.) entscheidet.

The responsible body is the natural or legal person who, alone or jointly with others, decides on the purposes and means of processing personal data (such as names, email addresses, etc.).

Storage period

Unless a specific storage period is specified in this privacy policy, your data will remain with us until the purpose for which it was processed no longer applies. Suppose you make a justified request to have your data deleted or revoke your consent to data processing. In that case, your data will be deleted unless we have any other legally permissible reason for storing it (such as tax or commercial retention periods). In the latter case, we will delete your data once those reasons no longer apply.

Note on data transfer to the US

Our website includes tools from companies based in the US. When these tools are active, your data may be passed on to the US servers of the respective companies. We would like to point out that the US is not a safe third country within the meaning of EU data protection laws. US companies are obliged to surrender personal data to security agencies without the data subject (you) being able to take legal action. Therefore, it cannot be ruled out that US authorities (such as secret services) process, evaluate, and permanently store your data on US servers for monitoring purposes. We do not influence these processing activities.

Revocation of your consent to data processing

Many data processing operations can only be performed with your explicit consent. You can revoke the consent you have given previously at any time. The lawfulness of the data processing before the revocation shall remain unaffected.

Right to object to the collection of data in exceptional cases and to direct marketing (Art. 21 GDPR)


The right to complain to the competent supervisory authority

In the event of violations of the GDPR, the data subjects shall have the right to complain to a supervisory authority, in particular in the member state of their habitual residence, their place of work, or the place of the alleged violation. The right to complain is without prejudice to other administrative or judicial remedies.

Right to data portability

You have the right to obtain personal data, which we automatically process based on your consent or within the framework of fulfilling a contract, and to have it delivered to you personally or to a third party in a standard, machine-readable format. If you require the data to be sent directly to another person, this will only be done to the extent that it is technically feasible.

SSL/TLS encryption

This site uses SSL or TLS encryption for security reasons and to protect the transmission of confidential content, such as orders or inquiries you send to us as the site operator. You can recognise an encrypted connection in your browser’s address line when it changes from "http://" to "https://" and the lock icon is displayed in your browser’s address bar.

If SSL or TLS encryption is activated, third parties cannot read the data you transfer to us.

Information, deletion and correction

You are entitled to obtain information about your data that has been stored, its origin, recipients, and the purpose of the processing, as well as about your right to have the data corrected or deleted, at any time and free of charge, within the scope of the applicable legal provisions. If you require further information on how we handle your data, you can contact us at any time at the address stated in the legal notice.

Right to restriction of processing

You have the right to request that the processing of your data be restricted. You can contact us at any time at the address specified in our legal notice. You shall have the right to restriction of processing in the following cases:

  • If you dispute the accuracy of the data, we will usually need some time to verify this. You have the right to request that the processing of your data be restricted for the duration of the verification.
  • If the processing of your data happened/happens unlawfully, you could request the restriction of data processing instead of the deletion.
  • Suppose we no longer need your data, but you need them to exercise, defend or assert legal claims. In that case, you have the right to request that the processing of your data be restricted instead of the data being deleted.
  • If you have objected in accordance with Art. 21 Paragraph 1 GDPR, your interests must be weighed against ours. As long as it is not yet clear whose interests prevail, you have the right to request that the processing of your data be restricted.

Suppose the processing of your data has been restricted. In that case, your data shall, except for storage, only be processed with your consent or for the establishment, exercise or defence of legal claims, or for the protection of the rights of another natural or legal person, or reasons of significant public interest of the European Union or a Member State.

4. Data collection on this website


Our website uses so-called "cookies". Cookies are small text files that do not cause any damage to your device. They are stored either temporarily for the duration of a session (session cookies) or permanently (permanent cookies) on your device. Session cookies are automatically deleted when you leave our site. Permanent cookies remain stored on your device until you delete them yourself or your web browser deletes them automatically.

In some cases, cookies from third-party companies can also be stored on your device when you open our website (third-party cookies). These enable us or you to use certain third-party services (for example, cookies for processing payment services).

Cookies have several functions. Many cookies are necessary for technical reasons as certain website functions would not work without them (such as shopping carts or streaming videos). Other cookies are used to evaluate user behaviour or to display advertising.

Cookies that are needed to carry out the electronic communication process (necessary cookies), or to provide certain functions you require (functional cookies, for example, for the shopping cart), or to optimise the website (such as cookies to measure the web audience) are stored on the basis of Art. 6 Para. 1 (f) GDPR, unless a different legal basis is specified. The website operator has a legitimate interest in the storage of cookies to optimise its services and avoid technical errors. Where consent to the storage of cookies has been requested, the relevant cookies are stored exclusively based on this consent (Art. 6 Para. 1 (a) GDPR); the consent can be withdrawn at any time.

You can configure your browser to notify you about the use of cookies, decide case by case whether to accept them, reject them in some instances or in general, and activate the automatic deletion of cookies when you close the browser. Disabling cookies may limit the functionality of our website.

Insofar as cookies are used by third-party companies or for analysis purposes, we will inform you of this separately within the framework of this privacy policy and, if necessary, ask for your consent.

Server log files

The provider of this website automatically collects and stores information in so-called server log files, which your browser sends to us automatically. This includes:

  • The type and version of the browser
  • The operating system in use
  • The referrer URL
  • The hostname of the accessing PC
  • The time of server request
  • The IP address

These data are not merged with any other data sources.

This data is recorded based on Art. 6 Paragraph 1 (f) GDPR. The website operator has a legitimate interest in the technically error-free presentation and optimisation of their website. Server log files must be recorded to ensure this.

Contact form

If you send us an enquiry via the contact form, we will store the information you provide, including your contact details, to process the request and any follow-up questions. We will not share this information without your consent.

This data is processed on the basis of Article 6 (1) (b) GDPR, provided that your request is related to the performance of a contract or is necessary to carry out pre-contractual measures. In all other cases, the processing is based on our legitimate interest in the effective processing of the inquiries sent to us (Art. 6 Para. 1 (f) GDPR) or on your consent (Art. 6 Para. 1 (a) GDPR) where this was requested.

We will store the data you have provided in the contact form until you ask us to delete it, revoke your consent to its storage, or if your information is no longer required (e.g. after your request has been processed). Mandatory statutory provisions – in particular retention periods – shall remain unaffected.

Inquiries by email, phone or fax

If you contact us by email, phone, or fax, we will store and process your request, including all related personal data (name, request) to process your request. We will not share this information without your consent.

This data is processed on the basis of Article 6 (1) (b) GDPR, provided that your request is related to the performance of a contract or is necessary to carry out pre-contractual measures. In all other cases, the processing is based on our legitimate interest in the effective processing of the inquiries sent to us (Art. 6 Para. 1 (f) GDPR) or on your consent (Art. 6 Para. 1 (a) GDPR) where this was requested.

We will store the data you have provided in the contact form until you ask us to delete it, revoke your consent to its storage, or if your information is no longer required (e.g. after your request has been processed). Mandatory statutory provisions – in particular retention periods – shall remain unaffected.

Commenting function on this website

Regarding the comment function on this page, in addition to your comment, we will also store information about the time the comment was created, your email address and, if you do not post anonymously, your username.

Storing IP addresses

Our comment function stores the IP addresses of users who write comments. Since we do not check comments on this website before they are posted, we need this data to be able to take action against the author in the event of legal violations such as insults or propaganda.

Duration of storage of comments

The comments and the associated data are saved and remain on our website until the commented content has been deleted in full or the comments have to be deleted for legal reasons (e.g. offensive comments).

Legal basis

The comments are saved based on your consent (Art. 6 Para. 1 (a) GDPR). You can revoke your consent at any time. It is enough to send us an informal message by email. The lawfulness of data processing operations that have already taken place remains unaffected by the revocation.

5. Analysis tools and advertising

IONOS WebAnalytics

This website uses the analysis services of IONOS WebAnalytics (hereinafter: IONOS). The provider is 1&1 IONOS SE, Elgendorfer Straße 57, D – 56410 Montabaur. IONOS analyses include visitor numbers and behaviour (e.g. the number of page views, duration of a website visit, bounce rates), visitor sources (i.e. which page the visitor comes from), visitor locations, and technical data (browser and operating system versions). For this purpose, IONOS saves the following data in particular:

  • The referrer (the website that was visited previously)
  • The requested web page or file
  • The type and version of the browser
  • The operating system in use
  • The device type used
  • Time of access
  • The IP address in anonymised form (it is used only to determine the location of access)

According to IONOS, data is collected fully anonymously so that it cannot be traced back to individual persons. IONOS WebAnalytics does not save cookies.

The data is stored and analysed on the basis of Art. 6 Para. 1 (f) GDPR. We have a legitimate interest in analysing user behaviour to optimise our website and our advertising. If a corresponding consent has been requested, the data is processed exclusively on the basis of Art. 6 Para. 1 (a) GDPR; the consent can be withdrawn at any time.

Further information on data collection and processing by IONOS WebAnalytics can be found in the IONOS privacy policy under the following link:


Information according to § 5 TMG:

Slow~Wave UG (haftungsbeschränkt)

Rathenaustraße 4
04179 Leipzig
+49 (0) 341 256 993 13

Register court : Local court Leipzig
Registration number : HRB 37481
Sales tax ID : DE331769939
Managing directors : Peter Münn, Prof. Dr. Dieter Lazik, Lucie Randy Strempel
Responsible for the content : Prof. Dr. Dieter Lazik, Lucie Randy Strempel

Image credits:
1st yoga image:
Copyright notice: Sergey Nivens/
2. old couple:
Copyright notice: Monkey Business/
3. woman at computer:
Copyright notice: Monkey Business 2/
4. man on airplane:
Copyright notice: AndrewLozovyi/
5. cover image (flyer):
Copyright notice: ImageNo 76518073/Jackfrog/AdobeStock.
6th kitchen image:
Copyright notice: ImageNo 11273424/Kzenon/AdobeStock image sunset (flyer):
Copyright notice: BildNr 189328172/Max/AdobeStock