I do have problem with the microphone cause it does not work at all but the earphones are working properly.
I'm not sure if there is a problem with the microphone or has to do with an Incompatibility with me Samsung phone device.
The customer service contacted me immediately after i reported my problem and they promise to arrange a refund of the amount i paid for this pair of headphones.
I Definitely recommend this site for a great shopping experience! :)