Phone Amplifier

Gadgets

Phone Amplifier: A passive acoustic amplifier for your smartphone, crafted via 3D printing.

Category	Gadgets
Difficulty	intermediate
Print time	6 h
Material	PLA / PETG
Tags	acoustics, passive amplifier, stand, audio

Engineer, author of The Big Book of 3D Printing and additive manufacturing expert

Updated on 2 October 2026