1) Make sure you are wearing the earbuds correctly.
2) Try single press, double press, long-press, etc. to see if any of the commands work.
3) Reset the earbuds. See "How do I reset Liberty 3 Pro ?" under the Bluetooth tab.

If you have additional questions, please contact us at Service@soundcore.com for further assistance. Make sure to mention that you have tried the steps in this FAQ so our agents do not ask you to repeat these steps.