> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/extender-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/extender-manual/introduction.md).

# Introduction

*⚠️ **Legacy Product Notice***\
*The EMOTIV Extender is no longer sold or supported. This manual is provided for historical reference only.*

The EMOTIV Extender accessory adds even more mobility and marker accuracy to your EMOTIV headset. An essential companion product for your Insight, Flex and EPOC+ headsets, the EMOTIV Extender is a mains isolated external rechargeable battery pack with a microSD card for external storage.

EMOTIV products are intended to be used for research applications and personal use only. Our products are not sold as Medical Devices as defined in EU directive 93/42/EEC. Our products are not designed or intended to be used for diagnosis or treatment of disease.


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