In this episode I cover the controls and connectors around the outside edge of the Baofeng UV5R VHF / UHF Hand Held Transceiver

Jack Plug / Socket, Wikipedia

https://en.wikipedia.org/wiki/Phone_connector_(audio)

I couldn't find a link to the supposed problem with the headphone socket on the Baofeng UV5R and despite regularly plugging and unplugging the covert earpiece so far mine seems to be working OK as long as I don't push the plug too far in. Perhaps on this radio it is less of a problem than I first thought.

Variable Resistor (Potentiometer), Wikipedia

https://en.wikipedia.org/wiki/Potentiometer

LED light, Wikipedia

https://en.wikipedia.org/wiki/Light-emitting_diode

SMA connector, Wikipedia

https://en.wikipedia.org/wiki/SMA_connector

Simplex, Wikipedia

https://en.wikipedia.org/wiki/Two-way_radio#Simplex

Duplex & [Half Duplex / Full Duplex], Wikipedia

https://en.wikipedia.org/wiki/Two-way_radio#Duplex

Squelch, Wikipedia -- Menu 0

https://en.wikipedia.org/wiki/Squelch