What is the gold (Programmable) button for and how do I use this?

This button allows you to open specific Apps on either short or long press of the Programmable button
1. Go to the Settings menu, scroll down to “Programmable Key” and toggle the option on.
2. This will open three options for the device: PTT (pust to talk), Short press and Long press. If you are using a service such as Zello, select the “PTT” option.
3. Tap on Short or Long press. This will open a screen where you have a number of applications that you can select from, for example; the open the Camera answer or to answer or hangup the phone.

Note: Only one option can be used at a time.