> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/epoc-x-user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/epoc-x-user-manual/getting-started/fitting-your-epoc-x.md).
# Fitting your EPOC X
Before fitting the headset onto your participant, you must choose if you want to have the headband at the top or the rear of their head.
To adjust the headband, hold the arm and push the headband up or down to rotate. The headband will lock into place. To readjust the headband, repeat this process.
When you rotate the headband, update the settings in your chosen EMOTIV application so that the motion data can be interpreted correctly.
For further information on adjusting the sensors, refer to your EMOTIV application guide.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://emotiv.gitbook.io/epoc-x-user-manual/getting-started/fitting-your-epoc-x.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.