# Positioning the FLEX Controller

There are two places on the FLEX Cap to position the FLEX controller — at the top (Cz) or  the rear (lz). See the images below.&#x20;

If you’re doing a sleep study or your participant needs a headrest (e.g., they use a wheelchair), we recommend positioning the FLEX Controller at the top of the FLEX Cap.&#x20;

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![](https://lh7-us.googleusercontent.com/xS-oh9g7o-MvlvwkJlUK-kIIolbB_IQJVZXBjJPFs6FF_4mSWBpxb2e1VIIeUfba9yOTsmFSGLdkuU8id4H5X2zdnyigAdMFP1e9S2CRJcY4tk5_yAao_ql1pSMQ4EIwh7yKaS8tBdKooB_cje5Eruk)



### How to Fit the FLEX Controller

1. Choose the position you want the FLEX Controller to be in.&#x20;
2. Place the FLEX Controller in the pocket with the EMOTIV logo facing you.&#x20;
3. Stretch the Flex Cap fabric over the FLEX Controller and around the edge of the EMOTIV logo (the circle).&#x20;
4. The FLEX controller is now secured into place and ready to be used. &#x20;

![](https://lh7-us.googleusercontent.com/_znuNYQR_8NdSb79Q9QZAAnAWr1xl1t7kODUgYzphyD8bEOcXEqa1AICM-oJ464n_jZ-xtKSnP_cIEMewQpGfLkYFIFU3Bg3e5WshXDWy4_zzJ2pT7YPPc3008pjU9mCV2gd6wob0zRXr5xJ37RkmuU)
