# Headsets

After you finish the [authentication](https://emotiv.gitbook.io/cortex-api/authentication) process, your application should start headset scanning to search for EMOTIV headsets, using the method [controlDevice](https://emotiv.gitbook.io/cortex-api/headset/controldevice) with "refresh" command, then use the method [queryHeadsets](https://emotiv.gitbook.io/cortex-api/headset/queryheadsets) to get the discovered headsets.

If the headset is not connected to Cortex yet, then you must call [controlDevice](https://emotiv.gitbook.io/cortex-api/headset/controldevice) with "connect" command.

See also [Headset object](https://emotiv.gitbook.io/cortex-api/headset/headset-object) for details.