How to enable mic echo on windows 7

you first click sound area start bar time area click the sound tap and after click recording tap and
you see down select the recording device below modify sound hardware list and click the mic settings and
you choose mic after right click propertise click open the new window mic propertise window
click the listen tap click and watch down listen to this device click now tik check after testing you sound
after working echo sound l think some question expain it just thank you