> 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/introduction-1/safety_precautions.md).

# Safety Precautions

* EPOC+ is a consumer product; it is not intended to use for in-patient healthcare or in hazardous environments.
* EPOC+ is designed to use at room temperature; rapid changes in temperature will affect the performance of the amplifiers and increase the noise floor.
* EPOC+ uses saline based sensors and every effort has been made to protect the electronics from water ingress, however it is not waterproof. Please do not submerge your headset.

*WARNING*: EPOC+ is powered by a Lithium-Polymer battery that is rated for operation in <45C environments. It is not user replaceable, please contact support if you suspect a fault or have any questions.

*WARNING*: Do not open the enclosure. Doing so will void the warranty and can damage the headset.

*WARNING*: Do not charge EPOC+ while wearing the device. In the unlikely event if your PC has a faulty power supply, you and your headset could unintentionally become the ground path. If EPOC+ detects a USB connection when turned on, it will stop communicating. If you would like to use it tethered, please use an EMOTIV [Extender](http://www.emotiv.com). Extender provides USB isolation and charging protection while tethered.


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