Different devices 

First device: uke in the back patio. 

Second device: uke near front door room.

Third device: uke in bathroom with closed door and cat laying on phone 

Fourth device: uke in bathtub 

Fifth device: uke in room

The first prototype is called The Notebook Fan, it distorts the sound, in this case the voice, causing it to sound more mechanical. 

The second prototype is called The Bowl, it spreads the sound, causing to seem interrupted and wavered. 

This is my secret twin sister, I apologize, she does not have a very good voice, but I did not want to be the one singing.

1. The Loud Pass filter. Designed to emulate a Low pass filter but while amplifying input in a megaphone type style.

2. The Volume button flute. Its like a recorder except the only thing it does is control volume.