A: Yes. you can use this headphone if your mobile phone has 3.5mm Audio jack

A: Please check in your PC sound settings. make sure the output has changed to the headphone. Also check on the inline volume control to make sure the volume has turned up.

A: Please follow the below steps for troubleshooting:

1. in the sound settings. make sure the input has changed to the headphone.
2. Also check the in-line control mic switch is turned on.
3. If you are connect to your PC. kindly make sure if your PC is single jack. if your PC is dual jack with dedicated audio jack for Audio and mic, you will need to use a dual jack adapter in order to use mic.