> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/flex-2.0-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/flex-2.0-user-manual/introduction/safety-precautions.md).

# Safety Precautions

* FLEX is a consumer product; it is not intended to be used as a medical device or in hazardous environments.
* FLEX is designed for use at room temperature; rapid changes in temperature will affect the performance of the amplifiers and increase the noise floor.
* WARNING: Do not submerge  FLEX in water. Every effort has been made to stop water from entering FLEX and protect the electronics inside.  However, FLEX is not waterproof. 
* WARNING:  FLEX is powered by a lithium-polymer battery that is rated for operation in <50°c (<122°F) environments. It is not user-replaceable. If you suspect that there is a fault with the battery, please contact EMOTIV Support.
* WARNING: Do not open the  FLEX enclosure. Doing so will void the warranty and can damage the headset.
* ‌WARNING: Do not charge FLEX while wearing the device. If you want to operate while tethered, we recommend using  FLEX with Extender.&#x20;

## Précautions de Sécurité

* &#x20;FLEX est un produit de consommation; il n'est pas destiné à être utilisé comme appareil médical ou dans des environnements dangereux.
* &#x20;FLEX est conçu pour une utilisation à température ambiante; des changements rapides de température affecteront les performances des amplificateurs et augmenteront le bruit de fond.
* AVERTISSEMENT: ne plongez pas l' FLEX dans l'eau. Tous les efforts ont été faits pour empêcher l'eau de pénétrer dans l' FLEX et protéger l'électronique à l'intérieur. Cependant,  FLEX n'est pas étanche.
* AVERTISSEMENT:  FLEX est alimenté par une batterie au lithium polymère conçue pour fonctionner dans des environnements <50°c. Il n'est pas remplaçable par l'utilisateur. Si vous pensez qu'il y a un problème avec la batterie, veuillez contacter le support EMOTIV.
* AVERTISSEMENT: n'ouvrez pas le boîtier du l' FLEX. Cela annulerait la garantie et pourrait endommager l' FLEX.
* ‌AVERTISSEMENT: ne chargez pas l' FLEX lorsque vous portez l'appareil. Si vous souhaitez fonctionner en mode connecté, nous vous recommandons d'utiliser FLEX avec Extender.


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