Push-to-talk is the button you hold to transmit, the one physical control that defines how a radio works.
What is push to talk? It’s the simple idea that your voice only goes out while you’re holding the button down. Press it, talk, release it, listen. That’s the ptt button in a nutshell, and it’s why radio conversations sound the way they do, a bit choppy, one side at a time.
The push to talk button might live on the side of the radio, on a speaker mic clipped to your shoulder, or even on a headset cable. Same function everywhere: momentary contact, transmit while held, receive when released.
Here’s a thing nobody tells you: a good PTT experience is about button placement more than the radio. If you’re using the unit all day, a speaker mic with a big, glove-friendly push to talk button will save your thumb. It’s the cheapest ergonomics upgrade in radio.
If you’re new to the whole thing, the Motorola guide walks through the button-by-button basics. And to be fair, every two way radio we sell has a ptt button, that part isn’t optional, it’s the core of the machine.