The Multi-Functional Button (MFB) lets you answer, end, or reject calls, control your music, and use voice assistance such as Siri or Google Assistant.

| Function | Control |
| Call – Answer / End Call | Short press (one second) |
| Call – Reject Call | Long press (two seconds) |
| Music* – Play / Pause Music | Short press (one second) |
| Music* – Track Forward | Press MFB and Volume Up “+” button |
| Music* – Track Backward | Press MFB and Volume Down “-” button |
| Voice Assistant (Siri, Google Voice) | Long press MFB button |
| Headset Status, checks connectivity and battery life | Short press Volume Up “+” and Down “-” buttons |
*Music control depends on the application. It may not work with web-based applications.
NOTE: When using dual connectivity, the Bluetooth connection is prioritized over dongle connection.
Important Notice: The Firmware Update Tool is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Important Notice: The Logitech Preference Manager is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Important Notice: The Logitech Control Center is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Important Notice: The Logitech Connection Utility is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Important Notice: The Unifying Software is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Important Notice: The SetPoint software is no longer supported or maintained by Logitech. We highly recommend using Logi Options+ for your supported Logitech devices. We are here to assist you during this transition.
Frequently Asked Questions
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