February 4, 2026
Description
✏️🔊 Pencil Case Amplifier – Multicolor Model
This pencil case amplifier is a creative and functional desk accessory that combines storage and sound amplification in one unique design. It works as a pencil case while naturally amplifying smartphone audio without electronics, using an internal acoustic channel.
Designed for multicolor 3D printing, this model features clean color separation and a sturdy structure, making it perfect for desks, classrooms, offices, and creative workspaces.
License:
CULTS PU - Private Use