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X.on EEG headset

About X.on

X.on is a new EEG headset where the intersection of quality and usability meet.

product development

Developed by Brain Products’ team of experts

The sleek and mimimalistic device was developed by Brain Products’ team of experts, who have been successfully providing research-grade neurophysiology solutions for more than 25 years.

Finger pointing to measured EEG signals in LSL Viewer on a laptop.

High quality EEG signals

To deliver high quality EEG signals and an impeccable user experience, X.on combines saltwater sponge-based electrodes on the outside and high-grade electronics on the inside.

EEG headset and and X.on smartphone app

Quick and easy access to brain signals

X.on comes with applications for Android™ and Windows® PC, allowing anyone to access brain signals quickly and easily. Put it on, switch it on, get your phone or PC and dive into the beautiful traces your brain draws or access the signal from the network stream that is available instantaneously.

Would you rather use iOS? No problem! X.on is compatible with PEER, providing you a fully functional analysis tool for recording and analyzing ERPs from well-known paradigms.

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Application Fields and Use Cases

Typical applications for which the X.on headset is a great match:


Education, Teaching, Pilot Testing

Teach the basics of EEG preparation, brain-based electrophysiology, signal acquisition and signal processing.

Test your pipelines or check if your experiment is working as planned, in a super convenient way.


Neuromarketing, Consumer & UX/UI Testing, Biofeedback & Industrial Research

Record and analyze brain data in real-world settings to understand how people respond to different marketing strategies or product placements and designs. Use their brain responses to get further insight into their motivations, preferences, decisions and more!

Look at brainwaves at specific electrode channels and get an indication of a person’s meditative state, attentional state, or level of relaxation.


Brain-Computer Interfaces (BCI),
Gaming and extended Reality (AR, VR)

Let your brain control a device, make music or paint.

Integrate brain data into your favorite online game and enhance the experience.

User Feedback

Why X.on

To make EEG accessible to anyone curious about the human brain, we are offering X.on as a solution that makes collecting brain data simple and straightforward without compromising signal quality.



Quick and easy hardware setup; intuitive control via the X.on Apps for Android™ or PC; no EEG know-how required

Signal Quality

Signal Quality

Good and reliable EEG data; certified by Brain Products.

Data Access

Data Access

Allows you to exit the black box and process your raw data offline or online via Lab Streaming Layer (LSL).



Sleek but robust, thus combining functionality with aesthetics.



No worries if you are new to the EEG field or lacking grant money. The X.on set is available for 2499€ (excl. shipping, tax and customs) and includes everything you need to get started right away.



Do you need several devices deployed in the field (i.e., for education or teaching purposes)? Or maybe you need a “take home” solution to collect data outside of the lab? X.on gives you all the flexibility you can imagine in terms of experimental design, recording population, and more.

X.on EEG headset circuit board

Features and Tech Specs


Electrode technology

Passive, sponge-based

EEG channels

7 (F3, F4, C3, Cz, C4, P3, P4) + ear clip (GND/REF)

AUX channels



One size fits all (adolescents through adults)
Size range: 52-60 cm head circumference


~110 g

Data transmission

Bluetooth® Low Energy (Version 5)

In the 2.4 GHz ISM band. There are no restrictions for its use worldwide.

Amplifier sampling rate

125, 250, or 500 Hz

500 Hz functionality depends on the brand and type of the used Android™ phone and the integrated Bluetooth® module or on the Bluetooth® adapter of the PC.

A/D conversion

16-bit or 24-bit

24-bit functionality depends on the brand and type of the used Android™ phone and the integrated Bluetooth® module or on the Bluetooth® adapter of the PC.

Input range

+/-9.76 mV (16-bit)

+/-312 mV (24-bit)

Input impedance

0.412 GΩ


>75 dB


0.1 to 131 Hz


Up to 5 h operation

Charging via USB micro connector

Rechargeable lithium-ion button cell

Graphite-layered metal oxide (LiNixMNyCozO2)

CE marking


Radio Equipment Directive (RED) 2014/53/EU

Directive 2011/65/EU and its amendment Directive (EU) 2015/863

UKCA marking


Radio Equipment Regulations 2017 of 4 December 2017

The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic
Equipment Regulations 2012 of 15 November 2016

X.on is not a medical device. The product may be used in the context of non-medical applications in order to carry out applied and fundamental research on the basis of neurophysiological methodology. The use for medical diagnosis, medical therapy, medical monitoring of vital physiological processes (such as cardiovascular functions, etc.) or other medical purposes is expressly forbidden.

X.on is permitted to be used by professionals in the context of non-medical applications only. Ownership cannot be transferred to non-professionals.


• X.on App for Android™

Included for Android™ v10 or higher

• X.on App for PC

Included for Windows® 10 or 11 64-bit

PEER app by BrainWave Software

Compatible with iOS 14.1 or higher

X.on App for Android™ offers


Impedance check, data monitoring, data saving, streaming to LSL, test signal

Additional phone sensors

Yes; e.g., ambient light, barometric pressure, gyroscope, location (GPS)

Data storage

BrainVision core data format (BVCDF, .eeg, .vhdr, .vmrk) on smartphone

Extensible data format (XDF) on computer via LSL

Raw data access

Offline from phone (BVCDF) or from computer (XDF)

Online via LSL

Note: Functionality cannot be guaranteed for every device with a running Android™ v10 or higher installation.

X.on App for PC offers


Impedance check, streaming to LSL

Data storage

Extensible data format (XDF) on computer via LSL

Raw data access

Offline from computer (XDF)

Online via LSL

Want to use X.on with your iOS device?

Check out the PEER app by BrainWave Software.

If you prefer iOS, or you simply want to benefit from already implemented paradigms that are based on well-established research and use standardized methods for analysis, you will love the implementation of X.on in BrainWave Software’s PEER software. PEER makes running ERP experiments as easy as it gets, and you still get to access the raw data, naturally in BVCDF or in PEER’s own data formats.

Oddball Analysis Screen in PEER

FAQ and Support


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Further questions?

Visit the dedicated X.on Support Center.

Brain Products GmbH
Zeppelinstraße 7
82205 Gilching

Contact us
Phone: +49 (0) 8105 733 84 0
Fax: +49 (0) 8105 733 84 505

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