Zello Push to talk mobile application

Click on the orange button with the big gray Z to open the Zello application.

If you are receiving a message you will hear the alert and message through your external speakers or headphones/headset.

It will display who is speaking when audio is being broadcast.

To respond make sure you are on "All" then press and hold down on the big circle button while you speak.  If you miss the message you can press on the replay button to listen to the last message that was broadcast.