Question [Q] I Need Suitable Headphones for my Droid Razr xt912 Or Diagram!

Hey whatsup everyone, Recently I have got this phone, And I don't have its original headphones.
So I managed to get some local china made headphones which include a built in mic and a call button, but those headphones don't work with this Motorola Droid Razr. And when I play music I can only hear music and Can't hear the Vocals of the song. So All I need is a Diagram of Headphone plug which is made for Droid Razr so I can modify mine accordingly. I will greatly appreciate your reply, Thank you.