SoundBridge is a minimalist passive amplifier designed for the shower: no electronics, no adhesives, just clever geometry. It works by redirecting and concentrating the sound from your phone’s bottom speaker through a waveguide tunnel, projecting it into the shower space.

To use it, simply place your phone face-up, with the bottom speaker aligned and covered by the cap-shaped section of SoundBridge. This cap seals around the speaker and forces the sound through the internal tunnel, which hooks over a glass shower wall and redirects the audio into your direction while you shower.

It’s the ultimate shower hack for anyone tired of muffled music and podcasts.

3D printing settings

Print in standard horizontal orientation: no supports needed.
Optimized for 0.2 mm layer height using PLA.
Print in a color that matches your bathroom for a stealthy look, or go bold for contrast!