3D Printed Iphone 5/5s/SE Passive Amp

This is a 3D print I made in my free time (when I should have been doing engineering in class.) It works for all 3 models of phone, and the model comes with the CAD .ipt files for modification. The Amp uses no electronics, and will boost sound by at least 2x.

File is uploaded on thingiverse here: http://www.thingiverse.com/thing:1467019

If you like it, check out some of my other models.