What should I do if the sound of my over-ear headphones is crackling?

You can try the general troubleshooting steps and let us know if it works:

1) "Forget" the headphones in your device's Bluetooth history.

2) Reset the headphones.

3) Try connecting the headphones with another device.

Here are tips to reset soundcore's over-ear headphones:

A3028/A3029	Hold down the Power button and Volume+ for 5 seconds
A3027/A3030	Hold down the Power button and Volume+ for 5 seconds
A3031	Hold down Multifunction Button (MFB) and Volume+ for 5 seconds when charging
A3021	Hold the Bluetooth and Play buttons for 5 seconds when pairing
A3023	Hold down Multifunction Button (MFB) and Volume+ for 5 seconds when inserting a USB charger
A3025/A3024	Hold down the Power button and Volume+ for 5 seconds when inserting a USB charger
A3032/A3033	Hold down the Power button and Volume+ for 5 seconds when charging
A3045	Hold down the Power button and Volume+ for 5 seconds when inserting a USB charger
A3035	Combination button : long press and hold power button & "+" button together for 5s (red led flash 3 times) when headset is powered on
A3040	Combination button : long press and hold power button & "+" button together for 5s (red led flash 3 times) when headset is powered on
A3004	Press and hold the volume up and MFB simultaneously for 5S when the headset is powered on

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.