[tadfisher]

I think that's just a sound cleaner.

[klvino]

Applause for the pun.

When working with ultrasound, I think of it the context of a micro-agitator versus the large scale shaking, snipping, and slapping clothes against rocks methods.

[Alupis]

Every ultrasound device makes sound, sometimes a lot of sound, because it's vibrating all of the materials, liquids, and air around it.