> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/epoc-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-user-manual/using-headset/epoc+_headset_details.md).

# 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.


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