Hi…..friends here i will show how create a stock vector illustration 3d headphone images.
In this tutorial you will learn how to create a headphone quick and easy.
[1]-Create Chamfer cyl with the following size
Place like me in the prespective view port 
[2]-Create another chamfer cyl and select the polygons
Apply the extrude polygons with the amount of -5.0 
[3]-Your object should like this 
[4]-Create rectangle with the following size and place like me 
[5]-Create box with the following size and apply the taper and bend modifier with the following ammount as shown below 
[6]-Your object should like this 
[7]-Create two zigzag line with the help of line and place like me 
[8]-Now you are done it enjoy the final output as shown below
