This is a design of a speaker for smartphones I made using a Pringles can.

The speaker is made of three sort of parts. Firstly, as I said, a pringles can, which holds the actual speaker and the cone (Part04). Then we have the 3D-printed parts, which you can download right here, and last, but nos least, the electronic components, the core of this project.

The idea of this thing is to have a holder for a smartphone so you have it stood in vertical position linked with the audio jack, while you hear your music with the speaker. The audio jack holder (P02) designed to be adjustable, so it can fit different types of phones or audio players. See it in action --> https://youtu.be/kPuiVrlEZz8

To set up the electronics you can watch this video https://youtu.be/Yh4vhlSzPGI from which I took the idea of making this thing. It's in Spanish, but I'm sure there's a pile of videos in youtube and tutorials over there explaining the same thing in other languages.

I hope you enjoy this and, if you have any question, don't hesitate to post a comment. :D