# EPOC+ Headset Details

![](/files/-LIeRv-zOAGAoayE8_Sf)

The EPOC+ has two electrode arms each containing 9 locations (7 sensors + 2 references). Two sensor locations (M1 / M2) already have rubber sensors fitted because they are the alternative positions for the default references (P3 / P4).

![](/files/-M_TWJrpL74wcp992rMA)

The EPOC+ is designed to provide good coverage of the frontal and prefrontal lobes and also provides coverage of the temporal, parietal and occipital lobes. The images shown above are the sensor locations for the EPOC+ using the international 10-20 system.


---

# Agent Instructions: 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:

```
GET https://emotiv.gitbook.io/epoc-user-manual/using-headset/epoc+_headset_details.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.
