Have you ever been on the phone? Is it uncomfortable to burn your ears with headphones for a long time? In fact, in addition to these, you are also given a "microwave" by the hot telephone radiation signal. What if you want to talk on the phone? Let's go back to the ancient times and pretend to be a young man of literature and art. By the way, if you want to use this retro phone of our DIY to make a phone call on the subway, it will definitely kill you.

Transformation ideas

Dismantle the fixed handset, and install the inching button on the handle to control the answering/hanging up of the mobile phone; The 3.5mm fixed telephone handset switching wire is modified to enable the fixed telephone handset to support the connection of mobile phone calls/computer voice chat at the same time. Finally, use personalized stickers to beautify the microphone.

Internal reconstruction of earpiece

Circuit diagram of earphone transformation