A passive phone amplifier will make your phone audio louder, but some look like trash. Build this wooden one so your setup both sounds and looks good.

Analog phones may be nearly obsolete today, but having served humanity for well over a century they’re quite likely to pop up in drawers or attics now and then. If you’ve got a few of t… ...

With $200 in parts and some soldering skill, anyone can build what may be the world's first DIY cell phone.

Build your own cellphone for $200 Arduino co-creator releases blueprints for a do-it-yourself phone ...