The Sonic Shower

For this iterative project, I ended up teaching myself quite a bit about fluid dynamics, DC generators, magnetic charging, speaker casings, waterproofing, and the properties of plastics under pressure.


The Sonic Shower is a high-pressure shower head with an integrated hydroelectric generator that charges a magnetically-connected, removable speaker to add some power to your shower. The speaker is connected in such a way that it does not come into contact with the water below, and is easily removable above the shower “ring”.

My goals for this project were threefold; to (1) create a quality showerhead that (2) hydroelectrically charges (3) a removable, bluetooth speaker, ostensibly for shower karaoke.

Iteration I

With iteration I, I was able to source, integrate, and tolerance for a 5V DC generator, and establish an electrical connection with the removable bluetooth speaker for safe charging. However, uneven water distribution prevented water from spraying at the high pressures required for a relaxing shower.

Iteration 3

By iteration III, I had improved upon this issue by narrowing my pathways and reducing the number of openings. I also designed a safer speaker detachment method to prevent it from getting wet when removed; the “ring” is now below the speaker, and the charging magnets also provide a stable speaker attachment.

Final(ish) Iteration

I completely redesigned the final(ish) version to compound the successes of previous versions in a smaller form factor, and with an improved water flow. This version fulfills the original goals; it plays music, is charged solely by water, and houses a removable bluetooth speaker.