sorry if this built is rubbish I will hopefully making some better ones soon.
The things you will need are 2 white wool and 21 black. (This is optional you can have other wool if you want) hope you like it.
Step 1: The Start
You start with 1 block above the ground and make it a 5 block space and place 2 white wool on the first block and the fifth block. If you don't understand what i was talking about look at the pics above. Or below
Step 2: Step 2
You will start with placing black wool all around the white wool and the top middle put black wool 1 block high.
If you don't know what in talking about look at the pics above. Or below
Step 3: The Last One
then you will be putting 2 black wool up the top and make it look like headphones.
If you don't know what I'm talking about look at the pics above or below