Free Cap Peak Performance | Semidry Saline EEG Headset | Silver/silver chloride - Ag/AgCl electrodes EEG cap

Free Cap Peak Performance | Semidry Saline EEG Headset | Silver/silver chloride - Ag/AgCl electrodes EEG cap

Die Free-Cap Peak Performance ist universell einsetzbar. Unsere Kunden auf der ganzen Welt – darunter in den USA, Deutschland, Spanien und Indien – profitieren bereits von unserer Technologie. Die Free-Cap Peak Performance ist für Anwendungen in den Bereichen kognitives Training, kognitives Assessment, Forschung, und Bildung vorgesehen.

Free-Cap-19-Kanal-Set Silber-Chlorid- AgCl- Elektroden wird tatsächlich mit gesinterten Ag/AgCl-Elektroden angeboten, um Langlebigkeit und eine stabile Leistung zu gewährleisten.

Disclaimer

The Free-Cap Wellness is a product for use in the areas of wellness, relaxation, cognitive training and education .
It contains no electronic components and is not classified as a medical device within the meaning of EU Regulation 2017/745 (MDR).
The product is aimed at health-conscious users to support relaxation, mental fitness and self-awareness.

The Free-Cap Wellness was developed taking into account the Product Safety Directive (2001/95/EC) and EU Regulation 2023/988 .
CE marking is not required for products without electronics that are not covered by a specific EU directive.

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651,26 €
651,26 €
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What is a saline EEG cap?

The Saline EEG cap (also called salt cap or free cap) was Thomas Feiner, QEEG-D and founder of the Institute for EEG Neurofeedback. It uses sponges soaked in saline solution to improve conduction between the scalp and electrodes – without any gel or paste.

The Free cap is considered the international quality standard for reliable saline EEG caps and is available exclusively from Neurofeedback partners in Germany available.

Features of the free cap:

  • Easy handling and excellent electrode quality (SCP, ERP, ISF, ILF)
  • No gel or paste required, quick installation, clean work
  • Electrodes can be moved flexibly (e.g. in the case of bone defects or wounds)
  • Individual parts such as electrode holders, cables, chin straps and sponges are interchangeable
  • 1–19 electrode assemblies possible
  • Compatible with many manufacturers (e.g. Brainmaster, Q20, Cognionics CAMP, others via adapter)
  • Durable, sustainable and easy to clean

Areas of application:

  • Neurofeedback (SCP, ISF, ILF, QEEG)
  • Wellness, relaxation, cognitive training and education

Product classification:

The Free-Cap Wellness contains no electronic components and is not a medical device according to EU Regulation 2017/745 (MDR). It was General Product Safety Directive (2001/95/EC) and the EU Regulation 2023/988 developed and therefore requires no CE marking.

Each box comes with:

  • Mesh cap with a total of 22 silver electrodes: 19 measuring electrodes, 2 reference electrodes (A1, A2) at the mastoid positions and 1 ground electrode.
  • 22 sponge pads
  • Chin adjustable strap

No gel, no paste - High-quality EEG, the likes of which never existed before.

The specific Free-Cap-19 channel set is actually offered with sintered Ag/AgCl electrodes to ensure durability and stable performance.
These electrodes provide a very stable electrochemical interface between skin and electrode, significantly reducing noise, drift, and polarization.
This results in more constant and precise EEG signals, especially in semi-dry or low-frequency measurements.

The Free-Cap Peak Performance is a new EEG cap that Saltwater as a conductor used. The electrodes are placed in a holder with a special Sponge materialIt is inserted, which slowly releases moisture to the scalp. The electrodes are optimally positioned and can be easily repositioned if necessary.

Is a rubber band or electrode holder broken?

No problem: With the Free-Cap, you can easily replace individual parts.

A saline cap, also called a salt cap or salt water cap, is an EEG (electroencephalogram) device that requires saline solution to improve conductivity between the scalp and the electrodes. This is achieved by placing a sponge soaked in saline solution between the scalp and the electrode surface.

Thomas Feiner, qEEG specialist and founder of the Institute for EEG Neurofeedback, invented the first saltwater cap based on an EEG network.Free-Cap Peak Performance has become the global quality standard for reliable saline EEG caps.

There is only one place where this saline EEG cap can be purchased – at Neurofeedback partnerin Germany. Only there can you be sure of receiving the same quality and reliability of Thomas Feiner's patented invention.

  • Dinc, L., Rybski, D., & Dineen, J. (2025). The effects of alpha/theta neurofeedback on mood, anxiety, emotion regulation and trait impulsivity.Brain Research.Article
  • Pérez-Elvira, R., Rodríguez Ledo, CR, Salgado-Ruiz, A., Agudo Juan, M., Quiroga Méndez, P., Dragomir, A., Costea, R., & Neamțu, B. (2024). EEG Activation During a Mindfulness Session and Its Effects on Memory Encoding.NeuroRegulation, 11(2), 112-127.Article
  • Collura, TF, Keizer, AW, Perez-Elvira, R., Warner, S., & Feiner, T. (2023). Electroencephalographic imaging and biofeedback training using Z-scores: Databases and LORETA-based methods. InIntroduction to Quantitative EEG and Neurofeedback(pp. 35–61). Elsevier.Book chapter

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Customer testimonials about Free-Cap Peak Performance

This is what our satisfied customers say


I use the cap daily; it is well received by customers, especially because no paste residue remains in the hair after the treatment.

The cap's conductivity is excellent, so the workload is minimal. GREAT!!

Best regards

Niels Schnepel

The Free-Cap is highly recommended in every available version. Whether 2-, 4- or 19-channel, the cap is easy to handle and is perceived as very comfortable by patients.

On the technical side, it also represents a significant advance: impedances below 5 kOhm are quite easy to achieve with a little NuPrep or OneStep, and the EEG signal is nice and clear.

Two pleasant additional effects: The hair is not full of glue after training (a positive aspect, especially for female patients), and if a child decides after being wired up that their shoes need to be taken off and bends forward, the cap keeps all the electrodes in place.

Philipp Heiler

A great invention... I have the highest praise for the Free Cap.

Once you use it, I can't imagine that you would ever want to go back to the paste method.

In my experience, connectivity is superior, even with ISF.

I have found it to be successful with all types of hair.

Both clients and technicians are thrilled to have neurofeedback without the mess.

Amy Warren


Thomas Feiner's EEG caps are a new, excellent and needed innovation.

The cap is easy to apply and comfortable.

It is also unique in that one can simultaneously record EEG while presenting stimulus and other treatment modalities.

Dr. Robert W. Thatcher, Ph.D., CEO Applied Neuroscience, Inc.

I hope you had a booth at ISNR—neurofeedback practitioners need to know about this cap, especially those doing whole-head assessments and 19-channel surface and Loreta.

So much quicker to use, easy to get good low impedances, much more comfortable for the patient.

So, I've a few women patients who only come at the end of the day because my regular cap messes up their hair. Yours — negligible inconvenience.

I especially like being able to lift up the electrode, touch with NuPrep on the scalp, put it back, and impedance is down — with no discomfort.

I've one patient who is the most difficult in 36 years to hook up.

Hope your cap is a success. You deserve to make lots of money on this one — a great contribution

Dr. Dick Genardi, Ohio, USA

I bought a 4-channel FreeCap from Thomas Feiner at ISNR, and tried it out on myself today.

To tell the truth I was a bit skeptical when I bought it but 'banked' on Thomas' reputation.

The cap produced beautifully clean EEG that you could tell came from low impedance (5–8 kΩ) and DC around 1 to 3.

I was using the Discovery amp but will now also buy an adapter so I can use it with the Atlantis amp.

Dr. John M. Griffin
Customer support

We are here for you!

Our dedicated support team is available to help you with all questions about neurofeedback. Whether it's technical support, product selection or application tips - we'll help you quickly and competently. Trust in our comprehensive service so that you can get the most out of your neurofeedback products.

TO THE CONTACT FORM CHAT
Alternatively, you can contact us via these channels
+49 (89) 2000299-67
+49 (89) 2000299-8967

Most of our clients use their saline cap for neurofeedback and quantitative EEG (qEEG). The Free-Cap Peak Performance can also be used for:

  • ISF neurofeedback (Mark Smith) and ILF neurofeedback (Othmer, Neuro-Amp) are used.
  • The Free-Cap is a 19-channel saline cap with mastoid electrodes as references, which can be easily attached to the mastoids. These saline caps come standard with mastoid electrodes. However, it is also possible to use our ear clips as a reference. You can order additional ear clips for this purpose in our shop.

When you purchase Thomas Feiner's invention, the Free-Cap Peak Performance Set, you also receive 25-pin connectors compatible with the Discovery Brainmaster and Q20. It's also compatible with the CAMP amplifier from Cognionics. With the appropriate adapters, you can use the Free-Cap Peak Performance salt cap with virtually any manufacturer. It's worth it because the signal quality with this cap is top-notch.

The Free-Cap Peak Performance is universally applicable. Our customers around the world—including in the United States, Germany, Spain, Portugal, India, and Puerto Rico—are already benefiting from our technology. The Free-Cap Peak Performance is intended for use in the areas of cognitive training, cognitive assessment, research, and education.

The Free-Cap Wellness is designed for use in the areas of wellness, relaxation, cognitive training, and education.
It contains no electronic components and is not classified as a medical device under EU Regulation 2017/745 (MDR).
This product is intended for health-conscious individuals to support relaxation, mental fitness, and self-awareness.

The Free-Cap Wellness has been developed in accordance with the General Product Safety Directive (2001/95/EC) and EU Regulation 2023/988.
As it is not subject to any specific EU directive requiring CE marking, a CE label is not mandatory.

The Salt Cap, invented by Thomas Feiner, is an EEG cap. It is known for the following features:

  • Easy handling, excellent electrode quality (for SCP, ERP, ISF, and ILF training). Electrodes are manufactured in the EU!
  • No gel or paste required, quick and easy installation with exceptional signal quality, possibility to relocate the electrodes if necessary, e.g., in the case of a bone defect or wound.
  • No sticky gel or paste on your clients' heads.
  • Fast, easy and excellent impedances.
  • Almost all Free Cap components can be replaced individually; these include electrode holders, cables, chin straps, and sponges.
  • 1–19 electrode assemblies possible.
  • Compatible with devices from many manufacturers.
  • Easy to clean.
  • High durability and sustainability.