Used to adjust the displayed frequency, select menu numbers, or
navigate through menu options.
PTT (Push-To-Talk) Button
Press the PTT button to switch the walkie-talkie to transmission mode;
release it to return to reception mode.
Side Keys 2 and 3
These can be customized through the menu to perform specific
functions as set by the user.
Headphone Jack
Used for connecting headphones; or for connecting a programming
cable, allowing frequency programming and software updates via PC
software.