Designed to fit a Xiaomi Redmi Note 3 Pro, and increase the volume of its speaker. Designed so I could more easily listen to podcasts while in the bathroom! Works great for podcasts, not so much for music, as the horn design makes the little speaker even more tinny.
UPDATE 1 Have redesigned parts of the original design to allow for greater tolerances with the Redmi, so the fit in't quite as snug.
UPDATE 2 Have uploaded a totally new design that allows the phone to lie flat while playing tunes into a longer and larger horn. Will print it and test it tonight, but I expect the new design will drastically improve the acoustics.
Printed on a Cocoon Create Touch