Part 3/6:
Features That Stand Out
The devices boast several unique features, such as built-in speakers, mouthpieces, and earpieces that facilitate hands-free conversation. Unlike modern touchscreens, these phones rely on mechanical buttons and channels, with some models offering frequency-shifting capabilities for enhanced privacy or to access different channels.
An interesting aspect mentioned is the device's compatibility with accessories—such as amplifiers or RF modules—that can extend its reach or power. The inclusion of manual volume controls and an air valve—an uncommon feature in typical phones—adds to the rugged appeal. This air valve might be part of the device's maintenance or tuning functions, further emphasizing its vintage engineering.