Smartphone Keystand

This is a smartphone stand. It connects to the 3.5mm audio jack so that the smartphone can stand horizontally. The original idea was taken from http://www.thingiverse.com/thing:88887 which it was inspired by this Kickstarter project https://www.kickstarter.com/projects/alisonw/keyprop-simple-smartphone-stand-self-timer-app.
I modified it for academic purposes.

Este es un stand para smartphones. Se conecta al puerto de audifonos para que el celular pueda ponerse horizontalmente. La idea orig