> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/cortex-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/cortex-manual/setting_up_your_eeg_device/connecting_your_headset.md).
# Connecting your headset
Before you connect your headset to EMOTIV App, make sure your device’s battery is charged.
## Bluetooth connection
To connect the application with your device using Bluetooth (BTLE 4.0) on Mac OS:
1. Turn on Bluetooth on MacOS 
2. Turn on your headset.
3. Open EMOTIV App and access the device list in the Devices tab
4. You will see a headset appear in the device list. If you do not see a device listed, click on the refresh button.
5. Click on “Connect” next to the device you want to use to connect your device. If more than one device is available, click on the device you wish to connect to.
To connect the software with you device using Bluetooth (BTLE 4.0) on Windows:
1. Open setting for “Bluetooth and other devices” 
2. Turn on your headset
3. Turn on Bluetooth and click to “Add Bluetooth or other device” 
4. Device should appear on the list of available devices and connect 
5. Open EMOTIV App and access the device list in the Devices tab
6. You will see a headset appear in the device list. If you do not see a device listed, click on the refresh button.
7. Click on “Connect” next to the device you want to use to connect your device. If more than one device is available, click on the device you wish to connect to.
*Note: If you are experiencing trouble connecting your headset via Bluetooth and have other Bluetooth devices connected to your machine (e.g. a keyboard or mouse), we recommend that you disconnect your other devices and then try connecting your headset again.*
## USB dongle connection
To connect the application with your device using one of our [USB receiver](https://www.emotiv.com/product/emotiv-usb-receiver-universal-model/) (recommended if you are in an environment with high levels of Bluetooth interference):
1. Plug in the USB receiver to your computer’s USB port
2. Turn on your headset.
3. Open EMOTIV App and access the device list in the Devices tab
4. Click on “Connect” next to the device you want to use to connect your device. If more than one device is available, click on the device you wish to connect to.
---
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